this isn’t the best G30. The 3-litre straight six 540i fires up and idles from the outside with a surprisingly theatrical growl, suggesting that the maverick decision of ‘going petrol’ may ...

On the other side resides a black and chrome (wheels) BMW 5 Series of the seventh-generation G30 variety – and it was identified as a 540i model, so it probably had the 3.0-liter B58 inline-six ...