Used 2017 Audi A4 Sedan Trims Comparison

Front-wheel drive is standard, with all-wheel drive (called Quattro in Audi lingo) optional. A seven-speed, dual-clutch automatic transmission comes with all A4s. A six-speed manual transmission is also available but only on all-wheel-drive A4s. The Ultra is offered only with front-wheel drive. Unless you really want maximum fuel economy, we'd suggest sticking with the regular A4 engine instead of the Ultra. You'll feel the power difference.

Standard feature highlights for the A4 Premium include 17-inch wheels, automatic xenon headlights, a forward collision mitigation system, adjustable drive settings (Audi's Drive Select), a sunroof, an auto-dimming rearview mirror, leather upholstery, power front seats, tri-zone climate control and folding rear seatbacks. Standard technology features include a rearview camera, Audi's MMI infotainment system with a 7-inch central display, Apple CarPlay and Android Auto integration, and a 10-speaker audio system with two USB ports.

The optional Convenience package adds auto-dimming and power-folding side mirrors, keyless ignition and entry, driver-seat memory settings and satellite radio. Heated front seats are a stand-alone option.

Our favorite is the next step up, the Premium Plus. You get the Convenience package features and the heated front seats as standard, along with 18-inch wheels, LED headlights, sporty (S line) exterior styling flourishes, front and rear parking sensors, and a 19-speaker Bang & Olufsen surround-sound audio system.

The main option for the Premium Plus is the Technology package with rear collision mitigation, blind-spot monitoring, Audi Connect online services (with mobile Wi-Fi), a 12.3-inch Virtual Cockpit multifunction instrument cluster and an upgraded version of MMI (optional on the Premium) with an enhanced 8.3-inch display, navigation, voice controls and fingertip-scrawl recognition.

Finally, there's the top-of-the-line A4 Prestige. It comes with the Technology package as well as a head-up display, additional interior ambient lighting, a surround-view parking camera system and HD radio.

Notable option packages include the Sport, Sport Plus, Driver Assistance, Cold Weather and Warm Weather packages. You can also get adaptive suspension dampers if you buy a Prestige, but in our testing they didn't do much to improve the car's handling abilities.