The Rover V8 is one of the most admired engines of the last half-century, but towards the end of the company’s life it was rather better known for churning out affordable family cars with four-cylinder powerplants. But a handful of 75s (and MG ZTs) got V8 power, using Ford’s quad-cam 4.6-litre V8 (rather than Rover’s famous Buick-derived V8) to great effect
https://www.autocar.co.uk/slideshow/sleepers-car-worlds-biggest-wolves-sheep%E2%80%99s-clothing-1#13
MG ZT info mods and maintenance 