Audi's A3 is a compelling entry-level luxury car, but it lacks some expected features for its price, and the interior, although well made, feels austere. It's solid and quiet, and has a drum-tight body structure. Crisp handling and a firm, controlled ride make the A3 enjoyable to drive. We tested it with the now-discontinued 1.8-liter engine, which delivered a respectable 27 mpg in our tests. The cabin is quiet, and the front seats are comfortable and supportive. The rear seat, however, is tight. It takes a bit of time to get used to the MMI infotainment system, but it ultimately proves logical. It's easy to hit $40,000 with just a few options. A sporty S3 with a 292-hp, 2.0-liter turbo; a convertible; and a hatchback plug-in hybrid are available.