Which vehicle that won the Auto Trader RAC British Touring Car Championship was marketed and produced by a Swedish manufacturer?
1998 British Touring Car Championship:  It was eventually won by Rickard Rydell in a Volvo S40 with a round to spare. Volvo S40: The Volvo S40 is a compact luxury car marketed and produced by the Swedish manufacturer Volvo Cars from 1995 to 2012 across two generations.
Volvo S40