The 2021 model year brings in two new members to the A6 family of midsize cars. First, the A6 Allroad is an adventurous wagon sitting on a raised suspension. At the top of the lineup, you’ll find a high-performance wagon called RS 6 Avant which is motivated by a twin-turbocharged 4.0-litre V8 engine that puts out nearly 600 horsepower. Other models include the A6 45 TFSI and 55 TFSI, plus the sporty S6.