The M5 has an elegant leather interior with supple and supportive sport seats. The driver's seating position is optimized for performance-style driving, and BMW hasn't gone the all-touchscreen route that many of its rivals have, so making changes to the air conditioning or adjusting the radio during driving causes little distraction. There's also a slew of desirable standard features that include customizable ambient interior lighting, a heated steering wheel, heated front seats, and a power-adjustable steering column. Further options include ventilated front seats with massage functions, heated rear seats, and four-zone automatic climate control. Along with useful interior cubby storage, the M5's trunk held six carry-on suitcases in our test.