2002 saw the Hockenheimring dramatically shortened and the layout altered. The forest straights were removed and more corners were added to increase the technical challenge of the circuit. The circuit went from 4.2 to 2.7 miles long. Michael Schumacher won in that year. 2003 was the year Colombian Juan Pablo Montoya won for Williams-BMW, it was the second German GP victory in three years for engines of the Bavarian car maker. That year also saw the last appearance of the British Arrows team, who had been involved in Formula One since 1978. 2004 saw Schumacher continue his domination of that season by winning the German Grand Prix and Spaniard Fernando Alonso won the following year in a Renault after his main rival Kimi Räikkönen suffered a hydraulics failure and retired. 2006 saw Renault's experimental mass damper system deemed legal by the race stewards but it was banned by the FIA. Renault did not use the system for the race and it proved to be their downfall as Schumacher won his home race in a Ferrari.