Maybach’s last concept car called Exelero.

The standard V12 bi-turbo engine in the Maybach 57 generates 550 hp, yet it soon became clear that even this colossal power would not be enough to propel the Exelero Concept Car, weighing almost 2.7 tonnes, up to the target top speed of 350 km/h. Engineers at the DaimlerChrysler engine works enlarged displacement from 5.6 to 5.9 litres and optimised turbocharging to squeeze out around 700 hp plus at least 1000 Newton metres of torque. Following endurance trials on the engine test rig, the Exelero Concept Car waited for its big moment. On May 1, 2005 it finally arrived: on the 12.5-kilometre Nardo circuit in Italy; three-times DTM champion and Le Mans winner Klaus Ludwig took the wheel of the Exelero Concept Car. It only took two laps before the FIA-calibrated measuring unit showed the magic reading of 351.45 km/h.