Gregoire Blachon and his company Boxeer built and swap VW TDI engines. He also enjoys racing his custom Beetle race car at Pikes Peak. The foundation of the project is a Fun Cup race car from Belgium consisting of a tubular chassis and composite body shell. The 1700 lb car is powered by a compound turbo 2.0 L TDI inline-four making 400+ horsepower on 50+ psi of boost. The motor features stock internals, upgraded injectors, Garrett G25-660 turbocharger, and modified Garrett GT2052 turbocharger. Behind the motor sits a Porsche Cayman seven-speed PDK transaxle with OS Giken LSD and Driveshaft Shop 800 hp axles.
Source: Boxeer Diesel Motorpsorts FB page, Gregoire S. Blachon, and Grind Hard Plumbing