 Since 1997, AER has developed a number of different engine families for customers.Evolution of the Nissan SR20 road car engine tuned for the Supertouring regulations, it was used by Ray Mallock, Ltd. in the works Nissan Primera in the British Touring Car Championship from 1997 to 1999, taking the manufacturers title in 1998 and 1999, and the 1999 drivers title with Laurent Aïello at the wheel.The engine was also used in the Crawford Racing Nissans in the Swedish Touring Car Championship, taking the title in 2000 with Tommy Rustad.