Automotive reporting and a specialist seller describe a Volkswagen W10 experimental engine installed in a BMW E39 M5, but the sources available do not include an official Volkswagen confirmation. The seller lists the engine as a 5.0-litre unit producing 480 hp and 592 Nm; those figures are seller-reported, not verified Volkswagen specifications.
What is the Volkswagen W10 prototype?
The W10 is described in automotive coverage and a specialist seller listing as an experimental ten-cylinder Volkswagen engine fitted to a BMW E39 M5. That pairing is the story’s defining oddity: a reported Volkswagen prototype in a performance sedan from a rival automaker. The Drive reported the installation and discussed apparent similarities in engine castings, but noted that Volkswagen had not issued an official statement confirming the project: The Drive’s report.
GDM Motors describes the car as a unique W10-powered E39 M5. Its listing is evidence of how the vehicle is presented by the seller, not an official Volkswagen account: GDM Motors’ listing.
What are the reported specifications?
GDM Motors’ undated listing, accessed in 2026, gives the W10 a 5.0-litre displacement, 480 hp and 592 Nm of torque. Volkswagen has not confirmed those figures in the sources available, so they should be treated as seller-reported details rather than factory specifications.
Do these 3 things before closing this tab:
1Scan for outdated or missing drivers - takes under a minute2Repair Windows errors before they cause bigger problems3Fix the driver behind crashes, sound loss and screen glitches#1 Best Overall
- Officially licensed product: made according to original drawings from the company archive of Porsche AG, according to the scale 1:3, approx. 35 x 30 x 30 cm in size - experience technology fascination at its best
- Faithful functional model: the high-quality kit with over 200 components made of plastic for screwing and plugging ensures a pleasant model building experience - assembly in around 3-4 hours, without gluing and painting
- Loving details: many components in an attractive metallic look, transparent motor housing for an exciting look inside - crankshaft, pistons and valves move in detail. A special highlight are the numerous attachments, which perfectly reflect the complex turbo technology.
- Impressive effects: integrated sound module with audio output for external speakers and a powerful turbo engine sound, simulated ignition spark, working ignition distributor, powered fan wheel
- Exclusive accessories: detailed instructions (English language not guaranteed) and comprehensive, exclusive manual with lots of exciting information on development history, historical photos, drawings and posters, pedestal for standing.
| Detail | W10 in the BMW E39 M5 | Evidence |
|---|---|---|
| Configuration | Ten-cylinder W engine, as described in reporting and the seller listing | The Drive and GDM Motors |
| Displacement | 5.0 litres | GDM Motors, undated listing accessed 2026 |
| Power | 480 hp | GDM Motors, undated listing accessed 2026 |
| Torque | 592 Nm | GDM Motors, undated listing accessed 2026 |
| Production status | Reported experimental one-off; no Volkswagen confirmation located in the cited coverage | The Drive and GDM Motors |
What is documented about Volkswagen’s other W engines?
Volkswagen’s production W12 provides relevant context, but it does not establish the W10’s development path. In a 2022 retrospective on the Phaeton, Volkswagen described the W12 as a compact W-layout built from two V6 engines and rated it at six litres, 309 kW (420 PS): Volkswagen Newsroom’s Phaeton retrospective.
The same retrospective documents the Phaeton V10 TDI as a diesel producing 230 kW (313 PS) and 750 Nm. It is a production-engine point of comparison, not evidence that the W10 shared its fuel type, design lineage or development program.
Rank #2
- ALL-INCLUDED MODEL KIT – Get straight into model building without the hassle of looking for paint, glue, or accessories; this model gift set kit includes basic Revell paints, a brush, and glue.
- SKILL LEVEL 3 – FUN & APPROACHABLE - Designed for beginner to intermediate builders, offering a balanced and rewarding model building experience for ages 10+
- DETAILED 1:32 SCALE VW BEETLE MODEL – Build a faithful replica of the iconic Volkswagen Beetle in 1:32 scale, recreating one of the most recognizable automobiles in automotive history.
- 24-PART MODEL WITH MOVABLE WHEELS – Features 24 parts and movable wheels that add realism and enhance the appearance of the finished model.
- INTERNATIONAL DECAL OPTIONS INCLUDED – Comes with a decal sheet featuring license plates from 8 countries, allowing builders to customize their finished VW Beetle.
| Engine | Displacement | Fuel | Reported output | Status in cited source |
|---|---|---|---|---|
| Reported W10 in BMW E39 M5 | 5.0 litres | Not stated by GDM Motors | 480 hp; 592 Nm | Experimental one-off as described by reporting and seller |
| Phaeton W12 | Six litres | Not stated in the cited retrospective | 309 kW (420 PS) | Volkswagen production engine |
| Phaeton V10 TDI | Not stated in the cited retrospective | Diesel | 230 kW (313 PS); 750 Nm | Volkswagen production engine |
Was Ferdinand Piëch involved?
Secondary reporting and the seller’s description associate Ferdinand Piëch with the car, including claims that he commissioned or personally used it. The cited sources do not provide an official Volkswagen record establishing either claim. They should therefore be treated as reported context, not confirmed facts.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Why was the engine put in a BMW, and what happened to the project?
The available sources do not establish Volkswagen’s motive for using a BMW E39 M5 as the host car, the project’s full development chronology, or why the work ended. They also do not establish a direct line from the W10 to Volkswagen’s later production W12 or W16 engines. Volkswagen’s published account of its W-layout production engine and the group’s earlier Audi history do not fill those gaps: Volkswagen’s Phaeton history and Volkswagen Group’s Audi history.
Quick Recap
Rank #4
- This kit can be built with the steering wheel on the left or right side
- Features include a detailed 1500 cc rear mounted engine with opening hood
- Includes chrome plates parts and soft black tires
- Includes waterslide decals and a paint guide
- This model kit requires model glue for construction and paint for finishing - sold separately
Rank #3
- Official Porsche licensed product; 300-piece, 1: 3 scale model kit
- Full color large format collector's handbook from the Porsche museum in Stuttgart
- Transparent engine body with motorised, moving parts; LED simulate sparkplugs firing.
- Crankshaft, pistons, valves - everything moves
- Original engine sound recorded from actual carrera
What remains unconfirmed
- Whether Volkswagen formally commissioned or officially documented the W10 project.
- The complete engineering and testing history, including the reason the program ended.
- Whether Piëch commissioned or drove the car.
- Whether the W10 directly influenced a later production W-engine.
- The car’s current sale or ownership status; the seller’s listing alone does not establish present availability.
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
