The cars transformed by a new engine

The cars transformed by a new engine illustrate how a different powerplant can dramatically change a vehicle’s character, performance and even motorsport credibility. The article highlights 28 models, starting with the AC Ace roadster introduced in 1953, later fitted with a 2.6-litre Ford straight-six and, through Carroll Shelby’s work, becoming the Cobra with a Ford Windsor V8 that grew from 4.3 litres to 4.7, then advancing to a 7.0-litre FE V8 generation. It also cites the Alpine A110’s Renault engines, noting a 1973 World Rally Championship debut-winning run with six round wins. On the road, Audi’s Q7 received a 5.9-litre diesel V12 producing 493bhp and reaching 0-62mph in 5.5 seconds. BMW M3 is mentioned as part of the lineup.