The G29 Z4 debuted in 2018, replacing the outgoing E89 model. Like its predecessor, there was no real “M” model in the lineup. Instead, there were two trim lines introduced – the sDrive 30i and the sDrive M40i. The latter was equipped with the B58B30 3.0-liter turbocharged inline-6, good for 382 horsepower and 369 lb-ft of torque. The sole transmission offering was the ZF 8-speed automatic, but with crisp shifts and a boatload of torque to motivate you – well, it’s probably the right fit for this type of modern convertible. The M40i also got you some pretty trick equipment; M Sport seats, suspension, brakes, aerodynamic kit, and differential joined the potent lineup. The car does 0-60 in just 3.8 seconds and covers the quarter in a touch over 12 – potent, indeed. But it cost a lot, as well – click a few option boxes, like this one, and you were well over 70 grand into the dealer. This car had the optional Driving Assistance, Premium, and Executive packages, and it’s lovely Misano Blue Metallic. With just 11k miles on the clock, is there a reasonable discount?