The Lemon Index
Head to head
Each car's headline trim of its newest generation. Green check = the better of the two on that line (more power, quicker, lighter, cheaper, fewer recalls).
Mercedes-AMG C63
W206 C63 S E Performance · 2024–
W206 C63 S E Performance · 2024–
Audi RS 5
B9 RS 5 Competition · 2018–2025
B9 RS 5 Competition · 2018–2025
Horsepower
671
444
Torque
lb-ft
lb-ft
752
442
0–60 mph
seconds; magazine test, else maker
seconds; magazine test, else maker
3.0
3.7
Top speed
155 mph
180 mph
Weight
4,817 lb
—
Price new
base, when new
base, when new
$83,900
$16,100
Engine
Mercedes-AMG M139l
2.0-liter inline-4, electric turbo, plug-in hybrid
2.0-liter inline-4, electric turbo, plug-in hybrid
Audi 2.9 TFSI V6
2.9-liter V-6, twin-turbo
2.9-liter V-6, twin-turbo
YouTube owner tone
out of 100, these years
out of 100, these years
54
58
Owner complaints
NHTSA, raw count, these years
NHTSA, raw count, these years
0
6
Recalls
these years
these years
0
9
Owner complaints are raw counts from NHTSA, not per car sold: performance cars sell too few for a fair per-car score, and the busier seller usually draws more. YouTube owner tone = how positively the most-watched videos about those model years talk about the car (100 = all praise).
Pick other generations or add a car
Every generation
Mercedes-AMG C63
| Generation | Trim | hp | 0–60 | Engine | YouTube tone | Complaints | Recalls |
|---|---|---|---|---|---|---|---|
| W206 · 2024– | C63 S E Performance | 671 | 3.0 | Mercedes-AMG M139l | 54 | 0 | 0 |
| W205 · 2015–2022 | C63 Sedan | 469 | 4.0 | Mercedes-AMG M177 | 60 | 21 | 22 |
| W204 · 2008–2015 | C63 AMG | 451 | 3.9 | Mercedes-AMG M156 | 49 | 18 | 0 |
Audi RS 5
| Generation | Trim | hp | 0–60 | Engine | YouTube tone | Complaints | Recalls |
|---|---|---|---|---|---|---|---|
| B9 · 2018–2025 | RS 5 Competition | 444 | 3.7 | Audi 2.9 TFSI V6 | 58 | 6 | 9 |
| B8 · 2013–2015 | RS 5 Coupe | 450 | 4.4 | Audi 4.2 FSI V8 | 58 | 14 | 0 |
Everything on the Mercedes-AMG C63 · Everything on the Audi RS 5 · Specs and their sources are on each car's page.