Valtonen Motorsport owns a unique Mercedes 300TD (W123). It originally came with a turbocharged 3.0 L OM617 diesel inline-five. They made several changes to increase power until eventually swapping to a turbocharged 4.0 L Ford Barra inline-six and ZF 8HP70 eight-speed automatic transmission. Valtonen Motorsport and the car visited Halli Airport in Kuorevesi, Jämsä, Finland for a standing-mile event. While there it reached 322 km/h (200 mph).
Source: Valtonen Motorsport FB page