Tim Pitt drives the latest ‘G90’ M5 on UK roads. How does this hot BMW saloon compare to rivals from Audi and Porsche?

BMW M5 in Imola Red with a black/red sport interior is a mint, low-mileage masterpiece with custom upgrades-perfect for BMW ...

Based on a 1999 BMW 740i, this particular E38 has been fitted with styling, chassis, and power upgrades courtesy of AC ...