The new Mercedes-Benz CLK Black Series is the Formula One pace car - based on the official F1 safety car and optimised for the racing circuit.
Powered by a 6.2-litre V8 engine, drivers can expect to get 500hp out of the machine.
In comparison, Nissan's GTR Godzilla features a 3.8-litre twin turbo V6 engine, capable of producing a maximum torque of 60kg.
Campbell Live put the two high-performance supercars to the test to find out which one comes out top.