The Bertha Benz Challenge, which follows the route of the pioneer trip of Bertha Benz in 1888, is open to vehicles with electric vehicles and hybrid and fuel-efficient. Here, the outward journey from Mannheim to Pforzheim (104 km) and the return trip takes just like 123 years ago after driving through another connector (90 miles) the next day from Pforzheim, Mannheim. For city cars is a shorter version of Mannheim and Bruchsal to back planned (60 km, plus 55 miles). As the State Department suggested in Stuttgart, to celebrate the official inauguration of the Bertha Benz Memorial Route under the car the summer of 2011, Bertha Benz Challenge 2011 is also the official inauguration of the new historical holiday road trip.