Car comparison

Volvo C30 2.5 i 20V T5vsMazda RX-8 1.3 Wankel

Compare specs, acceleration, fuel consumption, dimensions, practicality, and estimated running costs side by side.

New comparison

Volvo C30

2.5 i 20V T5

230 hp2521 ccGasolineFWDAutomaticTurbochargedCoupe2008-2010
VS

Mazda RX-8

1.3 Wankel

231 hp1308 ccGasolineRWDManualNaturally aspiratedCoupe2003-2012

Comparison overview

Use the estimates as comparison hints and verify exact figures before making decisions.

Best choices

Volvo C30 2.5 i 20V T5

  • Fastest top speed
    235 km/h
    146 mph
  • Highest torque
    320 Nm
    236 lb-ft
  • Lowest combined fuel consumption
    9.0 L/100 km
    26.1 mpg US
    31.4 mpg UK
  • Lowest city consumption
    13.5 L/100 km
    17.4 mpg US
    20.9 mpg UK
  • Lowest highway consumption
    6.5 L/100 km
    36.2 mpg US
    43.5 mpg UK
  • Lowest CO2 emissions
    211 g/km
  • Best estimated range
    689 km
    428 mi
  • Best overall score
    52/100
  • Best economy score
    83/100
  • Best practicality score
    48/100

Mazda RX-8 1.3 Wankel

  • Quickest 0-100 km/h
    6.4 s
  • Most powerful
    231 hp
    172 kW
  • Lightest
    1,379 kg
    3,040 lb
  • Best power-to-weight
    168 hp/t
    125 kW/t
    6.0 kg/hp
  • Largest trunk
    290 L
  • Best performance score
    55/100

Specification comparison

Specification comparison
ModelVolvoC302.5 i 20V T5MazdaRX-81.3 Wankel
Power
230hp172kW
231hp172kW
Torque
320Nm236lb-ft
211Nm156lb-ft
Curb weight
1,437kg3,168lb
1,379kg3,040lb
Gross weight
1,860kg4,101lb
1,815kg4,001lb
Top speed
235 km/h
146 mph
234 km/h
145 mph
To 99% top speed
86.7s99% target: 233 km/h / 145 mph
Calculated
72.6s99% target: 232 km/h / 144 mph
Calculated
0-100 km/h
7.1s
6.4s
0-200 km/h
30.5s
Calculated
26.7s
Calculated
0-60 mph
6.7s
Calculated
6.1s
Calculated
Fuel consumption
9L/100 km26.1mpg US31.4mpg UK
11.2L/100 km21mpg US25.2mpg UK
Fuel consumption city
13.5L/100 km17.4mpg US20.9mpg UK
15.6L/100 km15.1mpg US18.1mpg UK
Fuel consumption highway
6.5L/100 km36.2mpg US43.5mpg UK
8.7L/100 km27mpg US32.5mpg UK
Quarter mile
15.1s
Calculated
14.5s
Calculated
Power-to-weight
160hp/t119kW/t73hp/1000 lb
Calculated
168hp/t125kW/t76hp/1000 lb
Calculated
Torque-to-weight
223Nm/t149lb-ft/ton
Calculated
153Nm/t102lb-ft/ton
Calculated
Estimated range
689km428mi
Calculated
545km338mi
Calculated
Displacement
2,521cc154cu in
1,308cc80cu in
Length
4,252mm167in
4,430mm174in
Width
1,782mm70in
1,770mm70in
Height
1,447mm57in
1,340mm53in
Wheelbase
2,640mm104in
2,700mm106in
Front track
1,535mm60in
1,500mm59in
Rear track
1,531mm60in
1,505mm59in
Ground clearance-
140mm6in
Trunk volume
233L
290L
Doors
3
2
Seats
4
4
Fuel tank
62L
61L
CO2 emissions
211g/km
284g/km

Performance charts

Use the estimates as comparison hints and verify exact figures before making decisions.

Dyno simulation

Estimated stock-style power and torque curves by engine speed.

Volvo C30 2.5 i 20V T5Mazda RX-8 1.3 WankelPowerTorque
  • Volvo C30 2.5 i 20V T5: Power / Torque
  • Mazda RX-8 1.3 Wankel: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
VolvoC302.5 i 20V T55,000 rpm1,500-5,000 rpm5,250 rpm
MazdaRX-81.3 Wankel8,200 rpm5,500 rpm9,000 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricVolvoC302.5 i 20V T5MazdaRX-81.3 Wankel
Acceleration checkpoints
0-60 mph
0-97 km/h
6.7 s
6.1 s
0-100 km/h
0-62 mph
7.1 s
6.4 s
0-200 km/h
0-124 mph
30.5 s
26.7 s
Top speed
235 km/h
146 mph
234 km/h
145 mph
Drag race simulation
60 ft
18 m
2.5 s
2.4 s
330 ft
101 m
6.5 s
6.3 s
1/8 mile
201 m
9.8 s
9.5 s
1000 ft
305 m
12.7 s
12.2 s
1/4 mile
402 m
15.1 s
14.5 s
Trap speed
1/4 mile
402 m
153 km/h
95 mph
159 km/h
99 mph

Power comparison

Bar comparison chart for Power. Higher is better · hp / kW

Chart data table
VehicleValue
VolvoC302.5 i 20V T5
230 hp
172 kW
MazdaRX-81.3 Wankel
231 hp
172 kW

Mazda RX-8 1.3 Wankel has 1 hp more than Volvo C30 2.5 i 20V T5.

The biggest power difference is between Volvo C30 2.5 i 20V T5 and Mazda RX-8 1.3 Wankel: 1 hp (1 kW).

Torque comparison

Bar comparison chart for Torque. Higher is better · Nm / lb-ft

Chart data table
VehicleValue
VolvoC302.5 i 20V T5
320 Nm
236 lb-ft
MazdaRX-81.3 Wankel
211 Nm
156 lb-ft

Curb weight comparison

Bar comparison chart for Curb weight. Lower is better · kg / lb

Chart data table
VehicleValue
VolvoC302.5 i 20V T5
1,437 kg
3,168 lb
MazdaRX-81.3 Wankel
1,379 kg
3,040 lb

Top speed without limiter comparison

Bar comparison chart for Top speed without limiter. Higher is better · km/h / mph

Chart data table
VehicleValue
VolvoC302.5 i 20V T5
235 km/h
146 mph
MazdaRX-81.3 Wankel
234 km/h
145 mph

0-100 km/h comparison

Bar comparison chart for 0-100 km/h. Lower is better · seconds

Chart data table
VehicleValue
VolvoC302.5 i 20V T57.1 s
MazdaRX-81.3 Wankel6.4 s

The biggest 0-100 km/h difference is between Mazda RX-8 1.3 Wankel and Volvo C30 2.5 i 20V T5: 0.7 s.

Fuel consumption comparison

Bar comparison chart for Fuel consumption. Lower is better · L/100 km / mpg US / mpg UK

Chart data table
VehicleValue
VolvoC302.5 i 20V T5
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
MazdaRX-81.3 Wankel
11.2 L/100 km
21.0 mpg US
25.2 mpg UK

The biggest fuel consumption difference is between Volvo C30 2.5 i 20V T5 and Mazda RX-8 1.3 Wankel: 2.2 L/100 km.

Power-to-weight comparison

Bar comparison chart for Power-to-weight. Higher is better · hp/t / kW/t

Chart data table
VehicleValue
VolvoC302.5 i 20V T5
160 hp/t
119 kW/t
6.2 kg/hp
MazdaRX-81.3 Wankel
168 hp/t
125 kW/t
6.0 kg/hp

Estimated range comparison

Bar comparison chart for Estimated range. Higher is better · km / mi

Chart data table
VehicleValue
VolvoC302.5 i 20V T5
689 km
428 mi
MazdaRX-81.3 Wankel
545 km
338 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
VolvoC302.5 i 20V T5
230 hp
172 kW
7.1 s
235 km/h
146 mph
MazdaRX-81.3 Wankel
231 hp
172 kW
6.4 s
234 km/h
145 mph

Most attractive quadrant

Scatter chart with performance score on the X axis and practicality score on the Y axis.

Chart data table
VehiclePerformance scorePracticality score
VolvoC302.5 i 20V T5
Power
230 hp
172 kW
0-100 km/h7.1 s
Top speed
235 km/h
146 mph
Doors/seats
3 doors
4 seats
Trunk
233 L
8.2 cu ft
Length
4,252 mm
167.4 in
Height
1,447 mm
57.0 in
MazdaRX-81.3 Wankel
Power
231 hp
172 kW
0-100 km/h6.4 s
Top speed
234 km/h
145 mph
Doors/seats
2 doors
4 seats
Trunk
290 L
10.2 cu ft
Length
4,430 mm
174.4 in
Height
1,340 mm
52.8 in

Performance vs fuel economy

Cars closer to the top-right corner combine stronger performance with better fuel economy scores.

Performance vs fuel economy data table
VehiclePerformance scoreFuel economy score
VolvoC302.5 i 20V T5
Power
230 hp
172 kW
0-100 km/h7.1 s
Top speed
235 km/h
146 mph
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
MazdaRX-81.3 Wankel
Power
231 hp
172 kW
0-100 km/h6.4 s
Top speed
234 km/h
145 mph
11.2 L/100 km
21.0 mpg US
25.2 mpg UK

Volvo C30 2.5 i 20V T5 is closest to the top-right balance target for performance and fuel economy.

Acceleration vs fuel consumption

Cars closer to the lower-left corner offer a better mix of quick acceleration and low fuel consumption.

Acceleration vs fuel consumption data table
VehicleFuel consumption, L/100 km0-100 km/h, s
VolvoC302.5 i 20V T5
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
7.1 s
MazdaRX-81.3 Wankel
11.2 L/100 km
21.0 mpg US
25.2 mpg UK
6.4 s

Power-to-weight vs fuel consumption

The shaded area favors higher power-to-weight with lower combined fuel consumption.

Power-to-weight vs fuel consumption data table
VehiclePower-to-weight, hp/tFuel consumption, L/100 km
VolvoC302.5 i 20V T5
160 hp/t
119 kW/t
6.2 kg/hp
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
MazdaRX-81.3 Wankel
168 hp/t
125 kW/t
6.0 kg/hp
11.2 L/100 km
21.0 mpg US
25.2 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleVolvoC302.5 i 20V T5MazdaRX-81.3 Wankel
Power
230 hp
172 kW
231 hp
172 kW
Torque
320 Nm
236 lb-ft
211 Nm
156 lb-ft
Acceleration
7.1 s
6.4 s
Top speed
235 km/h
146 mph
234 km/h
145 mph
Lightness
1,437 kg
3,168 lb
1,379 kg
3,040 lb
Fuel consumption
9.0 L/100 km
26.1 mpg US
31.4 mpg UK
11.2 L/100 km
21.0 mpg US
25.2 mpg UK
Practicality
Doors/seats
3 doors
4 seats
Trunk
233 L
8.2 cu ft
Length
4,252 mm
167.4 in
Height
1,447 mm
57.0 in
Doors/seats
2 doors
4 seats
Trunk
290 L
10.2 cu ft
Length
4,430 mm
174.4 in
Height
1,340 mm
52.8 in
Range score
689 km
428 mi
545 km
338 mi
CO2 score
211 g/km
284 g/km
Trunk score
233 L
8.2 cu ft
290 L
10.2 cu ft
Power-to-weight score
160 hp/t
119 kW/t
6.2 kg/hp
168 hp/t
125 kW/t
6.0 kg/hp
Overall
Fixed score
Fixed score

Fuel cost and annual usage

Estimate running costs from combined consumption, your annual distance, and the fuel price in your local currency.

Enter the fuel price in your local currency, for example €/L, $/gal, £/L or any other local currency.

LC = Local Currency

Fuel cost and annual usage
VehicleVolvo C30 2.5 i 20V T5Mazda RX-8 1.3 Wankel
Consumption9 L/100 km26.1 mpg US31.4 mpg UK11.2 L/100 km21 mpg US25.2 mpg UK
Cost / 100 km15.75 LC100 km19.60 LC100 km
Cost / 100 mi25.35 LC100 mi31.54 LC100 mi
Annual fuel used1,350 L357 US gal297 UK gal1,680 L444 US gal370 UK gal
Annual fuel cost2,363 LC/year2,940 LC/year

Head-to-head comparisons

Volvo C30 2.5 i 20V T5

  • Has 109 Nm more
  • Has 1 km/h (1 mph) higher top speed
  • Uses 2.2 L/100 km less fuel
  • Has 144 km (90 mi) more estimated range
  • Emits 73 g/km less CO2

Pros

  • Highest top speed
  • Highest torque
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Heaviest
  • Smallest trunk

Mazda RX-8 1.3 Wankel

  • Has 1 hp more
  • Is 58 kg lighter
  • Is 0.7 s quicker from 0-100 km/h
  • Has 7 hp/t better power-to-weight
  • Has 57 L more trunk volume

Pros

  • Quickest 0-100 km/h in this comparison
  • Most powerful
  • Lightest
  • Best power-to-weight ratio
  • Largest trunk

Cons

  • Highest combined fuel consumption
  • Lowest top speed
  • Highest CO2 emissions

Choose cars to compare

Brand
Model
Generation
Engine or modification
Volvo C30 2.5 i 20V T5
Mazda RX-8 1.3 Wankel
Compare selected cars
2 vehicles selected

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