Rare UK-supplied Lamborghini Diablo SE30 heads to auction

RM Sotheby’s is set to offer a 1994 Lamborghini Diablo SE30 at The London Auction 2026 in London, according to Sports Car Digest. Reported to be one of just nine examples supplied new to the United Kingdom, the right-hand-drive anniversary special brings unusually scarce home-market provenance to Lamborghini’s already exclusive lightweight flagship.

RM Sotheby’s brings a UK-supplied Diablo SE30 to London

The car is identified as chassis RLA12122 and wears Bianco Impacto white paint over Bleu Alcantara upholstery. It is a notably restrained colour scheme for a shape that does not really do restraint: the broad tail, low nose and scissor doors supply enough theatre without requiring the paintwork to join in.

Lamborghini built 150 Diablo SE30s in total. Sports Car Digest cites the manufacturer’s production records for a right-hand-drive tally of 25, putting the steering-wheel arrangement into perspective before individual delivery markets enter the discussion. Right-hand drive and UK supply are different pieces of the provenance puzzle; a car can have the former without having been delivered new here.

The ownership trail also takes this example well beyond an ordinary British showroom transaction. The report says it was originally ordered by the royal family of Brunei, subsequently entered the collection of New Zealand automotive figure Sir Colin Giltrap, and was acquired by its current owner in 2006. Those are distinct stages in its history, rather than one conveniently compressed celebrity-owner claim.

Why Lamborghini built the Diablo SE30 anniversary special

The SE30 marked Lamborghini’s 30th anniversary, following the company’s foundation in 1963. Introduced in 1993, it arrived relatively early in the Diablo’s life: the model had replaced the Countach in 1990. That timing matters. This was a more focused development of Lamborghini’s contemporary flagship, not a farewell edition assembled as its replacement waited outside the factory gates.

Its engine remained a naturally aspirated 5.7-litre V12, but the SE30 received a revised fuel system, magnesium intake manifolds and a freer-flowing exhaust. Sports Car Digest puts output at approximately 525hp. The changes addressed how the engine breathed and received fuel, rather than adding forced induction; the anniversary badge was accompanied by substantial mechanical work beneath the engine cover.

Drive went to the rear wheels, distinguishing the SE30 from the four-wheel-drive Diablo VT. The VT had introduced an alternative approach to putting the Diablo’s power on the road, using drive to the front axle as well. The SE30 instead paired its engine upgrades with the simpler driven-wheel layout, leaving the rear tyres responsible for delivering all that performance.

Weight reduction was central to the programme. The report credits the SE30 with shedding roughly 180kg through measures including carbon-fibre bodywork, racing-oriented seats and plexiglass windows. Those alterations reached beyond trim and decoration: reducing mass changes the work demanded of the engine, brakes and tyres. It is the less glamorous half of the performance equation, but an unusually important one here.

Sports Car Digest also describes the deletion of conventional air conditioning and power steering. Neither is merely a brochure talking point when considering how such a car might be used today. Unassisted steering demands more effort at parking speeds, while missing climate control becomes rather more relevant in a slow-moving queue than on an early-morning country road.

The SE30’s aerodynamic revisions included redesigned brake-cooling intakes, a prominent rear wing and a raised, slatted engine cover. The publication quotes around four seconds for 0–60mph and a maximum speed approaching 200mph. Those are period performance figures for the model, not results from a fresh test of this chassis; they explain its standing without pretending anyone has just timed the auction car.

What Sports Car Digest reports about this Diablo SE30

The most specific rarity claim concerns the combination of paint, upholstery and steering position. According to Sports Car Digest, only four SE30s shared this white-and-blue specification, and this is reportedly the sole right-hand-drive example among them. That is narrower than calling it a unique SE30: the distinction is its particular factory configuration, not a separate engine derivative or a one-off body design.

The recorded distance is 12,396 kilometres, equivalent to approximately 7,700 miles. Keeping both units visible matters when comparing advertisements, especially for a UK-supplied car whose mileage might otherwise be assumed to be expressed in miles. The figure describes the reported distance covered; it does not, by itself, establish the condition of every component or the circumstances in which those kilometres accumulated.

Recent maintenance is described more precisely than the usual reassuring phrase about being well looked after. The report lists an engine oil and filter service and a brake-fluid replacement in March 2026. These are identifiable jobs with a stated date. They should be read as evidence of those particular maintenance tasks, rather than stretched into a claim that every major system has been rebuilt.

What buyers need before the Lamborghini SE30 auction

The supplied report identifies The London Auction 2026 but gives no exact sale date, venue or pre-sale estimate. Those details need checking with RM Sotheby’s before anyone arranges travel or sets a bidding ceiling. In particular, there is no published figure in this source from which to manufacture a valuation, however tempting it might be to attach a spectacular number to the production statistics.

Documentation is reported to accompany the car. That gives a prospective buyer something tangible to examine alongside the ownership account: chassis identity, factory specification, delivery history and service entries should be checked against the paperwork actually supplied. The Brunei connection is described as an original order, so establishing precisely what the records show is more useful than allowing a famous name to do all the work.

An inspection should also consider age separately from distance. Tyres and rubber components deteriorate with time, and a low odometer reading does not suspend that process. The report does not give tyre manufacturing dates or a detailed account of time-sensitive component replacement. Checking those items would therefore add information that the headline mileage and the specified March service cannot provide.

The SE30’s lightweight materials deserve their own scrutiny. Acrylic glazing can suffer scratches, while the condition of model-specific panels and interior pieces cannot be inferred from an engine service invoice. A specialist inspection should examine those items directly and establish what equipment this particular car retains. A description of the model’s original weight-saving programme is not a substitute for looking at the example being sold.

Finally, an auction bid and the amount ultimately payable are not necessarily the same number. Buyers should establish the applicable premium, taxes and any transport costs from the sale terms before bidding. For anyone planning to bring the car home under its own power, confirming insurance and road readiness belongs on that same pre-sale checklist; neither is established by an anniversary badge or a recent oil change.