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Audi A6 Quattro vs Buick Regal

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

Vehicles

Audi logo

2025 Audi A6 Quattro

Buick logo

2017 Buick Regal

Overview

SpecAudi A6 QuattroPremiumBuick Regal1SV
Selected trimPremium1SV
Body styleSedanSedan
Drivetrainall wheel drivefront wheel drive
Fuel typepremium unleaded (required)flex-fuel (unleaded/E85)
Transmission7-speed automated manual6-speed shiftable automatic
Engine typemild hybridflex-fuel (FFV)
Model year20252017

Pricing & market

SpecAudi A6 QuattroPremiumBuick Regal1SV
MSRP$58,100$27,065 (best)
Lowest listing price$8,620 (best)
Median listing price$8,620 (best)
Highest listing price$8,620 (best)
For sale now01 (best)

Fuel economy & range

SpecAudi A6 QuattroPremiumBuick Regal1SV
Combined MPG26 MPG (best)23 MPG
City MPG24 MPG (best)19 MPG
Highway MPG31 MPG (best)30 MPG
Fuel tank19.3 gal (best)18 gal

Performance

SpecAudi A6 QuattroPremiumBuick Regal1SV
Horsepower261 hp (best)182 hp
Torque273 lb-ft (best)172 lb-ft
Engine size2 L2.4 L (best)
CylindersI4I4

Size & capability

SpecAudi A6 QuattroPremiumBuick Regal1SV
Seating5 seats5 seats
Doors44
Cargo volume13.7 cu ft14.2 cu ft (best)
Payload1,102 lbs (best)
Curb weight4,101 lbs3,605 lbs (best)
Ground clearance4.2 in (best)
Wheelbase115.1 in (best)107.8 in
Length194.4 in (best)190.2 in
Width74.3 in (best)73.1 in
Height57.4 in58.4 in (best)

Safety & recalls

SpecAudi A6 QuattroPremiumBuick Regal1SV
NHTSA overall5 / 5 ★ (best)
Frontal crash (driver)5 / 5 ★ (best)
Frontal crash (passenger)4 / 5 ★ (best)
Side crash (driver)5 / 5 ★ (best)
Side crash (passenger)5 / 5 ★ (best)
Side pole5 / 5 ★ (best)
Rollover4 / 5 ★ (best)
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 QuattroBuick Regal
1

Premium

$58,100 MSRP(Currently comparing)

1SV

$27,065 MSRP(Currently comparing)

2

Premium

$62,600 MSRP

Sport Touring

$28,615 MSRP

3

Premium Plus

$62,800 MSRP

Base

$31,465 MSRP

4

Premium Plus

$67,300 MSRP

Premium II

$31,615 MSRP

5

Prestige

$73,350 MSRP

Premium II

$34,040 MSRP

6

GS

$34,115 MSRP

7

GS

$36,540 MSRP

Live inventory

Audi A6 Quattro vs Buick Regal FAQ

Which is better: 2025 Audi A6 Quattro or 2017 Buick Regal?
It depends on priorities. OpenDealer compares 2025 Audi A6 Quattro vs 2017 Buick Regal 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 2017 Buick Regal?
Based on starting MSRP, the 2017 Buick Regal starts lower at $27,065. Live Buick Regal listings start at $8,620.
Which has better startingMsrp: 2025 Audi A6 Quattro or 2017 Buick Regal?
The 2017 Buick Regal leads on startingMsrp in this comparison (27,065).
Which has better combinedMpg: 2025 Audi A6 Quattro or 2017 Buick Regal?
The 2025 Audi A6 Quattro leads on combinedMpg in this comparison (26).
Which has better horsepower: 2025 Audi A6 Quattro or 2017 Buick Regal?
The 2025 Audi A6 Quattro leads on horsepower in this comparison (335).
How do the NHTSA safety ratings compare for 2025 Audi A6 Quattro vs 2017 Buick Regal?
NHTSA overall crash-test ratings in this comparison: Buick Regal (5/5 NHTSA overall).