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Audi S3 vs Mercedes-Benz C-Class (2026)

Price gap, MSRP + destination

$2,395

Car 1

Car 2

S3C-ClassMSRP + destination$53,295$50,900Horsepower328 hp255 hpMPG combined26 mpg29 mpgCargo, max8.3 cu ft11.6 cu ftCargo, seats up8.3 cu ft11.6 cu ftRear legroom35.1 in36.0 inFront legroom41.2 in41.7 inSeats550-60 mph4.4 s6.0 s
Scored measures. Each is scaled to the larger value. Bold: the winner.
S3 Base Style AWD vs C-Class C 300 RWD
MeasureS3C-ClassWinner
MSRP + destination$53,295$50,900C-Class
Horsepower328 hp255 hpS3
Torque295 lb-ft to 310 lb-ft295 lb-ftN/A
MPG combined26 mpg29 mpgC-Class
Cargo, max8.3 cu ft11.6 cu ftC-Class
Cargo, seats up8.3 cu ft11.6 cu ftC-Class
Rear legroom35.1 in36.0 inC-Class
Front legroom41.2 in41.7 inC-Class
Length177.4 in187.0 inNot scored
Width71.5 in71.7 in to 74.4 inN/A
Curb weight3,549 lb3,792 lbNot scored
Seats55About the same
0-60 mph4.4 s tested6.0 s testedS3
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
S3 Base Style AWD
$52,000
C-Class C 300 4MATIC AWD
$51,650
$350
C-Class C 300 RWD
$49,650
S3 Base Style AWD
$52,000
$2,350

Cost to run

C-Class costs $3,312 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
CostS3C-Class
MSRP + destination$53,295$50,900
Fuel or charging, 1 year$1,477$1,324
Fuel or charging, 6 years$8,862$7,945
Total, 6 years$62,157$58,845

Which is better for me?

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

Equal weights: C-Class wins.

S3 wins if Space weight is 1 or less.

Who is ahead in each group
GroupAheadBy
PriceC-Class4%
MPGC-Class10%
PowerS322%
SpaceC-Class28%
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