 Using the locally built 2433 cc six-cylinder "Blue Streak" engine, it represented the first attempt by BMC to challenge the dominant Holden and Ford Falcon models in the lucrative six-cylinder family car class with a locally developed vehicle.The engine was a direct development of the company's 1622cc B-series unit, cylinder dimensions in the six-cylinder unit being identical to those of its four-cylinder counterpart.An upmarket variant, the Wolseley 24/80 sedan was also offered.