A couple of years ago the team at GAD Motors in Fellbach, Germany rented a Mercedes V-class for a trip. After driving it they decided they needed one of their own albeit with a lot more power. Their “Speed Shuttle” project started with a Mercedes V 250 d (W447) van that came with a turbocharged 2.1 L OM651 inline-four making 187 horsepower and a 4Matic drivetrain. They replaced the diesel inline-four with a twin-turbo 4.0 L M177 V8 capable of 900 horsepower. They paired the V8 with a 9G-Tronic nine-speed automatic transmission and 4Matic all-wheel drive. The van stops thanks to six-piston calipers with 390 mm rotors in front and four-piston calipers with 360 mm rotors in back.
Source: GAD Motors (video description) and Gumbal via Motor1
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