Used 2019 BMW M4 Convertible Trims Comparison

As you'd probably expect with a high-end two-door such as the M4, there's plenty of standard equipment. For starters, you get a turbocharged 3.0-liter inline six-cylinder engine (425 horsepower, 406 pound-feet) and either a six-speed manual transmission or an optional seven-speed dual-clutch automatic.

Also included is launch control, automatic rev-matching on downshifts, 18-inch wheels with summer tires, a power-retractable hardtop, power-folding and auto-dimming heated mirrors, parking sensors, an adaptive sport-tuned suspension, an electronically controlled rear differential, keyless ignition and entry, dual-zone automatic climate control, leather upholstery, power-adjustable front sport seats with heating, driver-seat memory settings, and split-folding rear seats.

In addition to the performance and cabin basics, the M4 has a decent amount of standard tech equipment, including an 8.8-inch display screen with BMW's iDrive infotainment interface, Apple CarPlay (subscription-based), a rearview camera, a navigation system, a suite of smartphone and online applications under the BMW ConnectedDrive banner, and a 16-speaker Harman Kardon surround-sound system with satellite radio.

A few key optional packages are available for the M4 as well. The Competition package ups the M4's power rating to 444 hp and adds 20-inch wheels, revised settings for the adaptive suspension, an even sportier exhaust, and some interior trim upgrades such as M stripes on the seat belts. The Executive package adds adaptive LED headlights, automatic high beams, side- and top-view cameras, front-seat neck warmers, an automated parking system, a head-up display and speed limit information.

Other options include 19-inch wheels, carbon-ceramic brakes, a heated steering wheel, blind-spot monitoring, a head-up display and wireless device charging.