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Audi S5 vs Mercedes-Benz SLC43 AMG

Side-by-side comparison from manufacturer specifications, NHTSA safety data, and live dealer listings.

Vehicles

Audi logo

2026 Audi S5

Mercedes-Benz logo

2020 Mercedes-Benz SLC43 AMG

Overview

SpecAudi S5PremiumMercedes-Benz SLC43 AMGAMG SLC 43
Selected trimPremiumAMG SLC 43
Body styleHatchbackConvertible
Drivetrainall wheel driverear wheel drive
Fuel typepremium unleaded (recommended)premium unleaded (required)
Transmission7-speed automated manual9-speed shiftable automatic
Engine typegasgas
Model year20262020

Pricing & market

SpecAudi S5PremiumMercedes-Benz SLC43 AMGAMG SLC 43
MSRP$63,300 (best)$64,650
Lowest listing price$57,140 (best)
Median listing price$70,464 (best)
Highest listing price$77,803 (best)
For sale now30 (best)0

Fuel economy & range

SpecAudi S5PremiumMercedes-Benz SLC43 AMGAMG SLC 43
Combined MPG23 MPG23 MPG
City MPG20 MPG20 MPG
Highway MPG29 MPG29 MPG
Fuel tank14.8 gal15.9 gal (best)

Performance

SpecAudi S5PremiumMercedes-Benz SLC43 AMGAMG SLC 43
Horsepower362 hp385 hp (best)
Torque406 lb-ft (best)384 lb-ft
Engine size3 L3 L
CylindersV6V6

Size & capability

SpecAudi S5PremiumMercedes-Benz SLC43 AMGAMG SLC 43
Seating5 seats (best)2 seats
Doors4 (best)2
Cargo volume37.5 cu ft (best)10.1 cu ft
Payload992 lbs (best)
Curb weight4,288 lbs3,527 lbs (best)
Ground clearance4.1 in (best)
Wheelbase114 in (best)95.7 in
Length190.3 in (best)163.1 in
Width73.2 in (best)71.5 in
Height56.5 in (best)51.3 in

Safety & recalls

SpecAudi S5PremiumMercedes-Benz SLC43 AMGAMG SLC 43
NHTSA overallNot Rated
Frontal crash (driver)Not Rated
Frontal crash (passenger)Not Rated
Side crash (driver)Not Rated
Side crash (passenger)Not Rated
Side poleNot Rated
RolloverNot Rated
Open recalls (YMM scope)None reportedNone reported

Highlighted values indicate the better figure for that spec when a clear winner exists. Specs reflect the selected trim for each vehicle. Drag a vehicle header to reorder columns. MSRP and specifications are manufacturer data; listing prices and inventory come from live dealer listings. Safety ratings are from NHTSA.

Trim overview

All available trims with MSRP. The trim selected above is highlighted; comparison specs use that selection.

TrimAudi S5Mercedes-Benz SLC43 AMG
1

Premium

$63,300 MSRP(Currently comparing)

AMG SLC 43

$64,650 MSRP(Currently comparing)

2

Premium Plus

$66,200 MSRP

3

Prestige

$70,900 MSRP

Live inventory

Audi S5 vs Mercedes-Benz SLC43 AMG FAQ

Which is better: 2026 Audi S5 or 2020 Mercedes-Benz SLC43 AMG?
It depends on priorities. OpenDealer compares 2026 Audi S5 vs 2020 Mercedes-Benz SLC43 AMG on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
Which costs less: 2026 Audi S5 or 2020 Mercedes-Benz SLC43 AMG?
Based on starting MSRP, the 2026 Audi S5 starts lower at $63,300. Live Audi S5 listings start at $57,140.
Which has better startingMsrp: 2026 Audi S5 or 2020 Mercedes-Benz SLC43 AMG?
The 2026 Audi S5 leads on startingMsrp in this comparison (63,300).
Which has better horsepower: 2026 Audi S5 or 2020 Mercedes-Benz SLC43 AMG?
The 2020 Mercedes-Benz SLC43 AMG leads on horsepower in this comparison (385).
Which has better seats: 2026 Audi S5 or 2020 Mercedes-Benz SLC43 AMG?
The 2026 Audi S5 leads on seats in this comparison (5).
How do the NHTSA safety ratings compare for 2026 Audi S5 vs 2020 Mercedes-Benz SLC43 AMG?
NHTSA overall crash-test ratings in this comparison: Audi S5 (Not Rated/5 NHTSA overall).