The all-new BMW M5 is the firm’s most powerful ever, sporting supercar-like credentials wrapped in what is essentially a family car with a limo-like luxurious interior. Staggering stats include a 4.4-liter twin turbo V8 engine that propels it to 60mph in a blink-and-you’ll-miss-it 3.1 seconds–and 124mph in less than 11 seconds. It delivers 617hp and a limited top speed of 155mph.