FOLLOWING the popularity of banked-track racing in America, at Daytona and elsewhere, a new circuit of this sort is being built at Ontario, Canada, claimed to be the most expensive race track in the World, at around £11-million. It will be a 2 1.2-mile oval, banked at the corners in Indianapolis style, rather than a steeply-banked bowl, but higher lap speeds are expected. It will incorporate a 3.23-mile “road” course. The finance is said to have come from Wall Street sources and more than 140,500 spectators can be accommodated, with 96 car garages. Excellent, even if this Ontario speedway post-dates the 3 3/4-mile Brooklands circuit, where a 2 1/4-mile “road” course was added in 1937, by 63 years.