Shipping a Supercar from UK to USA: Container & Paperwork

What is the safest way to ship a supercar from the UK to the USA?

The safest method is a sole-use enclosed container, loaded and braced at a controlled facility, with agreed-value marine insurance in place before the car leaves your property. The vehicle is the only item inside a sealed 20ft or 40ft container, strapped over the wheels rather than the chassis, and is not touched again until it arrives.

Everything else is a compromise against that standard. Shared container loading is a reasonable compromise for a well-sorted road car. Roll-on roll-off is not a compromise at all for a supercar. It is a different category of risk, and we will come to why.

How the car is actually loaded

The detail that matters most is the loading itself. A supercar has a front splitter that will contact a ramp at the wrong angle, a ride height that may be electronically adjustable but only within a narrow band, and a chassis that must never carry a strap.

Correct practice is soft strapping over the tyres at four points, wheel chocks fore and aft, and cross-bracing timber fixed to the container floor, never to the car. The battery is disconnected or a maintenance charger fitted, depending on the vessel schedule. Fuel is reduced to the minimum in line with the carrier's dangerous goods policy. The car is photographed comprehensively from every angle, including underbody and wheel faces, before the doors are sealed.

We also recommend a physical condition report signed at collection rather than at the port. Once a car has been handled by a third-party haulier, a port operative and a lashing gang, the chain of custody for any mark becomes genuinely difficult to establish. A dated, signed, photographed report from your own driveway is the single most useful document you can hold if a claim ever arises.

Why is RoRo the wrong choice for a high-value car?

Roll-on roll-off vessels carry vehicles on open decks, driven aboard by port staff and parked inches apart for a transatlantic crossing. The car is exposed to salt air, deck runoff, other people's door edges and other people's driving. Nothing can be locked inside it, and most RoRo operators cap their liability at a level that bears no relationship to a supercar's value.

The economics of RoRo are genuinely attractive, which is why owners consider it. It is the cheapest way to get a car across the Atlantic, and the transit is often marginally quicker because RoRo vessels run fixed schedules with fewer port calls. For a five-year-old estate car going to a relocating family, it is a sensible choice and we have recommended it.

For a supercar it fails on four counts.

• Exposure. The deck is ventilated to the open air. Salt-laden atmosphere is unavoidable across a seven to fourteen day crossing.
• Handling. The car is driven on and off by staff paid by volume, not by care, who will be moving a Bentley, a bulldozer and a hire van in the same shift. Ground clearance is a persistent problem. Low splitters meet RoRo ramps badly, and the standard remedy is a plank and momentum.
• Security. RoRo decks are not sealed. Items in the car must be removed, and the vehicle sits unlocked with the key handed to the operator.
• Insurability. Many marine underwriters will decline to write agreed-value cover on a high-value vehicle shipped RoRo, or will write it at a premium that erases the cost saving entirely.

That last point settles the argument. If the method of carriage makes the car difficult to insure properly, the method of carriage is wrong, regardless of what it saves.

RoRo, shared container and sole-use enclosed compared



Which US forms does an imported car need?

Two federal forms govern almost every car entering the United States. EPA Form 3520-1 declares the vehicle's emissions status to the Environmental Protection Agency. DOT Form HS-7 declares its safety conformity to the Department of Transportation. Both are filed at entry alongside the commercial documents and the customs declaration.

Understanding what these forms do removes most of the anxiety around importing a car to the USA from the UK. Neither form is an application. Each is a declaration in which you select a code describing the basis on which the vehicle is permitted to enter. The work is in choosing the correct code and being able to evidence it.

EPA Form 3520-1

This form addresses emissions compliance. The commonly used declaration codes cover vehicles that already conform to US EPA standards, vehicles imported by a nonresident for personal use on a temporary basis, vehicles at least twenty-one years old at the time of entry, and vehicles imported through an Independent Commercial Importer for modification and certification.

A modern supercar built for the European market is not, by default, EPA-certified for the United States, even though it is mechanically near-identical to the US-market car. The distinction is certification, not engineering.

DOT Form HS-7

This form addresses Federal Motor Vehicle Safety Standards. Its declaration codes cover vehicles that conform to FMVSS and bear the manufacturer's certification label, vehicles imported temporarily by a nonresident, vehicles at least twenty-five years old, and vehicles imported by a Registered Importer for modification.

Note the deliberate mismatch in age thresholds. Twenty-one years for EPA, twenty-five for DOT. Owners frequently assume both are twenty-five. They are not, and a car between twenty-one and twenty-five years old satisfies the EPA exemption while remaining subject to full DOT requirements.

The supporting documents

Alongside the two federal forms, a UK to USA car shipment typically requires the original V5C registration document, the bill of sale or a valuation if the car is not being sold, the bill of lading issued by the carrier, the commercial invoice, and evidence of HMRC export clearance from the UK side.

Where the vehicle is entering under a manufacturer's letter of conformity, that letter must be obtained from the manufacturer before shipping, not after. Customs and Border Protection will also require the importer of record's details, and for a non-US resident this needs arranging in advance rather than discovering at the quayside.

Duty and the customs bond

Passenger cars imported into the United States attract a duty of 2.5 per cent of the declared value. A customs bond is required for commercial entries and is effectively a financial guarantee to CBP that duties and penalties will be paid.

A single-entry bond covers one shipment. A continuous bond covers a year of shipments and makes sense for owners moving multiple cars. The bond is arranged by the licensed customs broker, and the broker's Power of Attorney must be signed before the vessel arrives. A missing Power of Attorney is the single most common cause of avoidable demurrage.

When does the 25-year rule actually apply, and when do owners wrongly think it does?

The 25-year rule exempts a vehicle from FMVSS compliance once it is twenty-five years old, calculated from the month and year of manufacture, not the model year. It applies to the DOT side only. It does not exempt a car from duty, from EPA declaration, from a customs bond, or from state-level registration and emissions testing at the destination.

The misunderstandings cluster in three predictable places.

1. The date calculation. A car built in November 1999 is not eligible in January 2024. It is eligible in November 2024, and CBP will check the build date on the chassis plate rather than the registration date on the V5C. Shipping a car that becomes eligible during the crossing is a genuine strategy, but the arrival date must fall after the anniversary, not the sailing date.
2. The assumption that the exemption is universal. Owners routinely believe a twenty-five-year-old car imports itself. It does not. EPA Form 3520-1 is still filed, duty is still payable, the customs bond is still required, and California in particular applies its own emissions regime that does not track the federal exemption. An owner importing to Los Angeles should assume a different compliance path from one importing to Miami or Dallas.
3. Applying the rule to the wrong car entirely. The vast majority of supercars we handle on this corridor are modern, three to eight years old, and the rule has no bearing on them whatsoever. For those vehicles the realistic routes are the manufacturer's letter of conformity where the model was certified for the US market, temporary importation under bond for a defined period, the nonresident personal-use provisions, or a Registered Importer conversion.

Which route applies depends on the specific car, its specification and your immigration status. It is a conversation to have before booking a vessel, not after.

How is the car insured while it is at sea?

A supercar should be covered by agreed-value marine cargo insurance, arranged separately from the carrier's liability. Agreed value means the insurer accepts a stated figure in advance, supported by valuation evidence, and pays that figure on a total loss. The carrier's liability, by contrast, is capped by international convention at a figure calculated by weight, and it is nowhere near adequate.

This distinction deserves plain explanation, because it is where owners are most exposed.

Under the Hague-Visby Rules, a sea carrier's liability is limited to a fixed number of Special Drawing Rights per package or per kilogramme, whichever is greater. For a car weighing around 1,500 kilogrammes, that calculation produces a figure in the low single-digit thousands of pounds. Not tens of thousands. A few thousand.

If a container is lost overboard, the carrier pays that limit. The remaining value of a £300,000 car is simply gone unless you hold separate cover.

Agreed-value marine cargo cover closes the gap. Underwriters will typically want a recent professional valuation or documented purchase price, the shipping method, the loading arrangements, and confirmation of who is handling the car at each stage. This is where the choice of container method feeds directly into insurance outcomes. Sole-use enclosed carriage is the configuration underwriters prefer, and it is frequently the configuration that makes full agreed-value cover available at all.

Read the policy for two things in particular.

• Whether cover runs warehouse to warehouse or only port to port. A policy that lapses when the container is discharged leaves the inland leg uninsured.
• The general average clause. General average is an ancient principle of maritime law under which all cargo owners contribute proportionally to losses incurred to save the voyage, whether a fire, a grounding or a salvage operation. A properly written marine policy covers your general average contribution. Without it, you can face a substantial demand on a car that arrived undamaged.

What happens at US customs and the bonded warehouse?

On arrival, the container is discharged and moved under bond to a Container Freight Station or bonded warehouse. The customs broker files the entry with CBP, presents EPA Form 3520-1 and DOT Form HS-7, pays duty against the customs bond, and waits for release. Where CBP or EPA elects to examine the vehicle, the container is opened under supervision and the car inspected.

A bonded warehouse is simply a facility licensed to hold goods that have not yet cleared customs. Nothing leaves until the entry is released. Storage inside the free period is included. Beyond it, demurrage and per-day storage charges begin, and they are levied on the container as well as the cargo.

This is why document preparation before departure matters more than speed at the destination. A broker holding a complete file clears an entry in days. A broker chasing a missing conformity letter or an unsigned Power of Attorney can be there for weeks, with the meter running.

Examination rates on vehicles are meaningfully higher than on general cargo, and an examination is not an accusation of anything. It is routine. What we plan for is the possibility, by ensuring the car is loaded so it can be unlashed and relashed without damage, and by nominating an agent at the destination port who attends the examination rather than leaving it to warehouse staff.

Once released, the car is transported inland, ideally on an enclosed transporter to the same standard as the UK collection. State registration then follows, and this is a state matter rather than a federal one. Title, registration, emissions testing where applicable and insurance all sit with the destination state's DMV. We flag the state-specific requirements at the quotation stage so there are no surprises after the car has landed.

Why does The Mover Group handle this corridor differently?

Onkar Sharma, who founded the business, brings 30+ years of personal experience in international relocation, and that experience shapes how we run supercar logistics from London. Every client has a personal move manager. Customs coordination is handled by us with our brokers, not handed back to you as a list of tasks.

The Supercar Mover sits within The Mover Group alongside The International Mover, The Indian Mover, The London Mover and The Diplomatic Mover. The Mover Group holds IAM Premier Membership, the highest tier of the International Association of Movers, and that governs the agent network we use at both ends of this corridor. The standards applied to a container of personal effects are the standards applied to a container carrying a seven-figure car.

Where a car moves as part of a wider household relocation, we coordinate both under one plan. Our guide to moving to the USA from the UK covers the household side.

Frequently asked questions

Speak to us before you book a vessel

The decisions that determine how well a car crosses the Atlantic are made weeks before it reaches a port. Container choice, insurance basis, conformity route and broker instruction all need settling early.

If you are considering shipping a supercar from UK to USA, we will walk through your specific car, its age and specification, your destination state and your timeline, and give you a fixed price with nothing hidden behind it.

Call us on 0203 318 2216 or email sales@themovergroup.com. You will be given a personal move manager from the first conversation, and that same person will be with you until the car is on your drive in the United States.

Every move is personal.