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Audi A6 Quattro vs Mercedes-Benz S430

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

Vehicles

Audi logo

2025 Audi A6 Quattro

Mercedes-Benz logo

2006 Mercedes-Benz S430

Overview

SpecAudi A6 QuattroPremiumMercedes-Benz S430S430
Selected trimPremiumS430
Body styleSedanSedan
Drivetrainall wheel driverear wheel drive
Fuel typepremium unleaded (required)premium unleaded (required)
Transmission7-speed automated manual7-speed shiftable automatic
Engine typemild hybridgas
Model year20252006

Pricing & market

SpecAudi A6 QuattroPremiumMercedes-Benz S430S430
MSRP$58,100 (best)$77,250
For sale now00

Fuel economy & range

SpecAudi A6 QuattroPremiumMercedes-Benz S430S430
Combined MPG26 MPG (best)19 MPG
City MPG24 MPG (best)16 MPG
Highway MPG31 MPG (best)24 MPG
Fuel tank19.3 gal23.2 gal (best)

Performance

SpecAudi A6 QuattroPremiumMercedes-Benz S430S430
Horsepower261 hp275 hp (best)
Torque273 lb-ft295 lb-ft (best)
Engine size2 L4.3 L (best)
CylindersI4V8

Size & capability

SpecAudi A6 QuattroPremiumMercedes-Benz S430S430
Seating5 seats5 seats
Doors44
Cargo volume13.7 cu ft15.4 cu ft (best)
Payload1,102 lbs (best)—
Curb weight4,101 lbs (best)4,160 lbs
Ground clearance4.2 in (best)—
Wheelbase115.1 in121.5 in (best)
Length194.4 in203.3 in (best)
Width74.3 in (best)73 in
Height57.4 in (best)56.9 in

Safety & recalls

SpecAudi A6 QuattroPremiumMercedes-Benz S430S430
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 A6 QuattroMercedes-Benz S430
1

Premium

$58,100 MSRP(Currently comparing)

S430

$77,250 MSRP(Currently comparing)

2

Premium

$62,600 MSRP

S430 4MATIC

$77,250 MSRP

3

Premium Plus

$62,800 MSRP

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4

Premium Plus

$67,300 MSRP

—
5

Prestige

$73,350 MSRP

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Audi A6 Quattro vs Mercedes-Benz S430 FAQ

Which is better: 2025 Audi A6 Quattro or 2006 Mercedes-Benz S430?
It depends on priorities. OpenDealer compares 2025 Audi A6 Quattro vs 2006 Mercedes-Benz S430 on MSRP, fuel economy, horsepower, seating, towing, NHTSA safety ratings, and live market prices so you can weigh the tradeoffs.
Which costs less: 2025 Audi A6 Quattro or 2006 Mercedes-Benz S430?
Based on starting MSRP, the 2025 Audi A6 Quattro starts lower at $58,100.
Which has better startingMsrp: 2025 Audi A6 Quattro or 2006 Mercedes-Benz S430?
The 2025 Audi A6 Quattro leads on startingMsrp in this comparison (58,100).
Which has better combinedMpg: 2025 Audi A6 Quattro or 2006 Mercedes-Benz S430?
The 2025 Audi A6 Quattro leads on combinedMpg in this comparison (26).
Which has better horsepower: 2025 Audi A6 Quattro or 2006 Mercedes-Benz S430?
The 2025 Audi A6 Quattro leads on horsepower in this comparison (335).