[2] Late in 2010, BMW announced the withdrawal of its support of the series, with the final running held at the 2010 Sydney Telstra 500.
The first and only order of 25 vehicles from BMW Group were imported ADR and duty exempt, for the explicit use of motorsport activities.
Working through the night, local technicians liaised with technical support in Munich before a software patch was issued, a resulting modest power reduction meant the vehicles stayed below a certain heat range whereby the turbocharger wastegate component would fail.
The only changes to the rules were the requirement to run on radial tyres and the addition of a dry break fuel system to the cars for long-distance events.
The Mini Challenge cars were based on the road going John Cooper works models, with a 1.6 litre, four cylinder, turbocharged engine producing 155 kW (208 hp).