Score Breakdown
How each car scores across 6 expert categories
Performance Radar
Larger filled area means stronger all-round capability across all categories
A6 Sportback e-tron
RS 3 Saloon
Verdict
Based on aggregate expert scores across all categories
Popular Comparisons
Most compared head-to-heads on PerfectCars
Compare Cars Side by Side
PerfectCars' car comparison tool lets you put two, three or four cars head to head and see exactly how they stack up. Instead of flipping between tabs, you get every number in one clear table — price, horsepower, torque, 0–60 mph, top speed, fuel economy, dimensions, weight, safety and our expert scores — so the differences that matter are impossible to miss.
Turn on "Key Differences" to hide the rows where the cars are identical and focus only on what sets them apart, then open any car's full profile for the complete spec sheet, owner reviews and pricing. It's the fastest way to settle a shortlist and decide which car is right for you.
Common Questions
Add cars to the slots at the top — search by name and pick each one — and the tool instantly builds a side-by-side table of their specs, price, performance and scores.
You can compare up to four cars at the same time, which is ideal for narrowing a shortlist across two or three rivals plus a wildcard.
Price, engine and powertrain, horsepower and torque, 0–60 mph, top speed, fuel economy or range, dimensions, weight, safety features and PerfectCars expert scores.
Yes — comparing cars on PerfectCars is completely free, with no sign-up required.