The engine: M120 V12 engine. 48v, 394 hp, 570 Nm. 100 % goose bumps. The coin: Swedish 5 kronor, just 2,00 mm thick (less then a 2 Euro coin) and 28,50 mm high. From my Mercedes-Benz SL600 R129 -1998. Sorry for the sound quality, my smartphone mic failed to capture the exciting hum from the V12.