The 350 km/h 700 bhp Fulda Maybach Exelero

However, it quickly became clear that, despite the Biturbo boost, the customary 12-cylinder engine would not be able to produce the targeted maximum speed. The vitally necessary assistance came from Untertürkheim. The specialists in the Mercedes Car Group optimized the turbo charger and increased the cubic capacity of the type 12 engine to 5.9 liters. In the end, 700 hp of engine output confirmed the technological brilliance of the implemented modifications.

The subsequent test measurements at the beginning of May 2005 at the high speed Motodrom in Nardo/Southern Italy, impressively documented the success of the unique efforts of all concerned: a top speed of 351.45 km/h! And thus the world record for limousines.