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Audi A6 Allroad vs BMW M3 (2026)

Price gap, MSRP + destination

$6,080

Car 1

Car 2

A6 AllroadM3MSRP + destination$74,395$80,475Horsepower335 hp473 hpTorque369 lb-ft406 lb-ftMPG combined24 mpg19 mpgCargo, max30.0 cu ft16.9 cu ftCargo, seats up30.0 cu ft16.9 cu ftRear legroom37.4 in35.6 inFront legroom41.3 in41.6 inSeats55Ground clearance5.5 in4.7 in0-60 mph5.4 s4.1 s
Scored measures. Each is scaled to the larger value. Bold: the winner.
A6 Allroad 55 TFSI Premium Plus AWD vs M3 RWD
MeasureA6 AllroadM3Winner
MSRP + destination$74,395$80,475A6 Allroad
Horsepower335 hp473 hpM3
Torque369 lb-ft406 lb-ftM3
MPG combined24 mpg19 mpgA6 Allroad
Cargo, max30.0 cu ft16.9 cu ftA6 Allroad
Cargo, seats up30.0 cu ft16.9 cu ftA6 Allroad
Rear legroom37.4 in35.6 inA6 Allroad
Front legroom41.3 in41.6 inAbout the same
Length194.9 in189.1 inNot scored
Width74.8 in74.3 inNot scored
Curb weight4,486 lb3,840 lbNot scored
Towing4,000 lbN/AN/A
Seats55About the same
Ground clearance5.5 in4.7 inA6 Allroad
0-60 mph5.4 s tested4.1 s testedM3
Basic warranty4 yr / 50,000 mi4 yr / 50,000 miAbout the same

Not scored: length, width, curb weight. N/A rows are not counted.

Nearest trims by price

Each trim and the rival trim nearest in MSRP
TrimNearest in priceGap
A6 Allroad 55 TFSI Premium Plus AWD
$73,100
M3 RWD
$79,300
$6,200
M3 RWD
$79,300
A6 Allroad 55 TFSI Prestige AWD
$79,200
$100

Cost to run

A6 Allroad costs $8,606 less over 6 years.

12,000 miles a year. Gas $3.20. Electricity 17 cents per kWh.

Price plus fuel or charging over 6 years
CostA6 AllroadM3
MSRP + destination$74,395$80,475
Fuel or charging, 1 year$1,600$2,021
Fuel or charging, 6 years$9,600$12,126
Total, 6 years$83,995$92,601

Which is better for me?

Weight each group from 0 to 10. MPG uses fuel or charging cost.

Equal weights: A6 Allroad wins.

M3 wins if Space weight is 0 or less.

Who is ahead in each group
GroupAheadBy
PriceA6 Allroad8%
MPGA6 Allroad21%
PowerM329%
SpaceA6 Allroad44%
TowingN/A

Other years

What this cannot tell you

Your price and mpg will differ.

Reliability and safety are not included.

How values are checked