The apex air-cooled 911 reimagining — F1 engineering meets the 964.
The DLS — Dynamics and Lightweighting Study — is the Singer Vehicle Design programme developed in partnership with Williams Advanced Engineering, based on the Porsche 964 platform. Its 4.0-litre naturally aspirated air-cooled flat-six was developed by Williams with input from Hans Mezger, producing 500 hp, revving beyond 9,000 rpm. Body panels, chassis details and interior fittings extensively use carbon fibre, magnesium and titanium; kerb weight is approximately 990 kg. Drive is through a Hewland six-speed manual gearbox.
Production is limited to 75 units, built in the United Kingdom, at approximately US$1.8M each. The DLS Turbo (2023, based on the 964 Turbo, a separate limited run, 3.8-litre twin-turbo flat-six producing 700+ hp) is a separate reimagining programme within the Singer catalogue and is referenced here for context only.
The DLS is the apex of the air-cooled 911 reimagining category. Its collaboration with Williams Advanced Engineering — a Formula 1 engineering house — combined with the Mezger-informed 4.0-litre flat-six, made it the technical high-water mark of the Singer catalogue at launch and one of the most engineered restomod programmes ever offered.
| Variant | Years | Production | Notes |
|---|---|---|---|
| DLS (Dynamics and Lightweighting Study) | 2018– | 75 | Porsche 964 platform; 4.0L naturally aspirated air-cooled flat-six developed by Williams Advanced Engineering with input from Hans Mezger; 500 hp at 9,000 rpm; Hewland 6-speed manual, RWD; carbon-fibre / magnesium / titanium construction; approximately 990 kg. Production limited to 75 units, built in the UK, approximately US$1.8M each. |
| DLS Turbo (reference — separate programme) | 2023– | Not separately recorded | Separate Singer reimagining programme based on the 964 Turbo. 3.8L twin-turbo flat-six, 700+ hp; a separate limited run. Reference variant only — not folded into the 75-unit DLS run. |
Modern hypercars are allocation-driven. Verify build slot, factory client-register status, delivery paperwork and specification against factory documentation. For the DLS, verify build slot, specification and delivery status via Singer Vehicle Design. Cars are commissioned individually — the specification and colour choices materially affect resale positioning.
A proper pre-purchase inspection covers cold-start behaviour, hybrid-system health where applicable, undertray-off chassis inspection, brake and tyre condition, and — for track-oriented cars — a review of consumable and lifed-component status. Factory or authorised inspection is strongly preferred over independent assessment.
Use a paint-depth gauge and a lift inspection. Confirm PPF history and any accident record; low-mileage cars still show stone-chip and track-debris damage that materially affects presentation and pricing.
Specification, colour and factory options move values meaningfully. On programme cars, evaluate the ownership experience — support, transport, event access — alongside the car itself.
| Date | Auction | Car | Mileage | Result |
|---|---|---|---|---|
| 2025-08-14 | Broad Arrow Auctions Monterey Jet Center | 1991 911 Reimagined by Singer DLS (Lot 132) The model's first verified public auction sale. | — | $2,645,000 Sold |
Fixed 75-unit production, Williams Advanced Engineering collaboration, Mezger-informed 4.0-litre flat-six and the technical high-water mark of the Singer catalogue at launch. Long-term positioning within the air-cooled 911 reimagining category is secure.
Our view, not advice. This section is Car Collector International's editorial judgement on where this model sits in the collector market, based on the production, specification and market data set out in this guide. It is not a recommendation to buy or sell and it is not investment advice. Values can fall as well as rise.
Get new buyer's guides and collector market intelligence delivered to your inbox. No spam. We respect your inbox.
The valuation figures in this guide are for research purposes only and do not constitute financial or investment advice. See our full disclaimer.
