The Reventón's engine was a slightly tuned version of the Murciélago LP640's 6.5 L V-12, rated at 640 hp (480 kW).^[1][6] According to the official release, the Reventón accelerates to 100 km/h (62 mph) in the same time as the Lamborghini Murciélago LP640 (3.4 seconds), and is capable of reaching a maximum speed of over 340 km/h (210 mph).^[2] Using the internal speedometer, the recorded top speed was displayed as 356 km/h (221 mph).^[15][16]