Vianor released a video showing a souped-up 1956 Volvo BM Terrier tractor. The front suspension has been reinforced and upgraded and the frame was extended 18 cm (7 inches). The engine is sourced from a Volvo 940 turbo (B230FT) with a Volvo 240 head. They used a Saab Turbo Prospark ignition and fuel system. The engine makes 225 horsepower on 0.75 bar (10.8 psi) of boost. Good for a top speed of 60 mph.
This is an older video with the previous Volvo engine.
Source: Vianor Youtube channel and Tracktor Terror’s Facebook page via Autoblog