Interesting shot of the Koenigsegg Regera exhaust system. The traditional exhaust looking part (centre) is actually for cooling the electric motors and batteries. The metal disc brake shaped part (right) is actually the exhaust outletRead more
Interesting cut out on how Audi's fuel pump works on its 2.0 TFSI engine. The sweeping arm pressurises the system. It is driven directly from the camshaft so its speed is directly linked to the engine RPM.