Car comparison

Alfa Romeo RZ 3.0 i V6vsVolvo C70 Convertible 2.0 20V Turbo

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

New comparison

Alfa Romeo RZ

3.0 i V6

210 hp2959 ccGasolineRWDManualNaturally aspiratedCabriolet / convertible1988-1993

Volvo C70 Convertible

2.0 20V Turbo

225 hp1984 ccGasolineFWDManualTurbochargedCabriolet / convertible1997-2005

Comparison overview

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

Alfa Romeo RZ 3.0 i V6

Quickest 0-100 km/h
7.5 s
Fastest top speed
240 km/h
149 mph Unrestricted
230 km/h
143 mph Restricted
Lightest
1,380 kg
3,042 lb
Best power-to-weight
152 hp/t
113 kW/t
6.6 kg/hp
Lowest city consumption
13.2 L/100 km
17.8 mpg US
21.4 mpg UK
Lowest highway consumption
7.2 L/100 km
32.7 mpg US
39.2 mpg UK
Best performance score
51/100
Best economy score
82/100

Volvo C70 Convertible 2.0 20V Turbo

Most powerful
225 hp
168 kW
Highest torque
310 Nm
229 lb-ft
Largest trunk
260 L
Best overall score
49/100
Best practicality score
44/100

Specification comparison

Specification comparison
Model	Alfa RomeoRZ3.0 i V6	VolvoC70 Convertible2.0 20V Turbo
Power	210hp157kW	225hp168kW
Torque	245Nm181lb-ft	310Nm229lb-ft
Curb weight	1,380kg3,042lb	1,570kg3,461lb
Gross weight	1,550kg3,417lb	1,970kg4,343lb
Top speed	Unrestricted 240 km/h149 mph Restricted 230 km/h143 mph Calculated	235 km/h 146 mph
To 99% top speed	95.9s99% target: 238 km/h / 148 mph Calculated	102.0s99% target: 233 km/h / 145 mph Calculated
0-100 km/h	7.5s	7.9s
0-200 km/h	31.3s Calculated	35.1s Calculated
0-60 mph	7.1s Calculated	7.5s Calculated
Fuel consumption	9.3L/100 km25.3mpg US30.4mpg UK	-
Fuel consumption city	13.2L/100 km17.8mpg US21.4mpg UK	16.4L/100 km14.3mpg US17.2mpg UK
Fuel consumption highway	7.2L/100 km32.7mpg US39.2mpg UK	8.3L/100 km28.3mpg US34.0mpg UK
Quarter mile	15.4s Calculated	15.7s Calculated
Power-to-weight	152hp/t113kW/t69hp/1000 lb Calculated	143hp/t107kW/t65hp/1000 lb Calculated
Torque-to-weight	178Nm/t119lb-ft/ton Calculated	197Nm/t132lb-ft/ton Calculated
Estimated range	753km468mi Calculated	-
Displacement	2,959cc181cu in	1,984cc121cu in
Length	4,060mm160in	4,720mm186in
Width	1,730mm68in	1,820mm72in
Height	1,300mm51in	1,410mm56in
Wheelbase	2,510mm99in	2,660mm105in
Front track	1,465mm58in	1,520mm60in
Rear track	1,425mm56in	1,520mm60in
Trunk volume	120L	260L
Max trunk volume	390L	-
Doors	2	2
Seats	2	4
Fuel tank	70L	70L

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.

Alfa Romeo RZ 3.0 i V6Volvo C70 Convertible 2.0 20V TurboPowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
Alfa RomeoRZ3.0 i V6	6,200 rpm	4,500 rpm	6,450 rpm
VolvoC70 Convertible2.0 20V Turbo	5,700 rpm	2,700 rpm	5,950 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	Alfa RomeoRZ3.0 i V6	VolvoC70 Convertible2.0 20V Turbo
	Acceleration checkpoints
0-60 mph 0-97 km/h	7.1 s	7.5 s
0-100 km/h 0-62 mph	7.5 s	7.9 s
0-200 km/h 0-124 mph	31.3 s	35.1 s
Top speed	Unrestricted 240 km/h149 mph Restricted 230 km/h143 mph Likely limited	235 km/h 146 mph
	Drag race simulation
60 ft 18 m	2.5 s	2.5 s
330 ft 101 m	6.7 s	6.8 s
1/8 mile 201 m	10.1 s	10.2 s
1000 ft 305 m	13.0 s	13.2 s
1/4 mile 402 m	15.4 s	15.7 s
Trap speed 1/4 mile 402 m	151 km/h 94 mph	147 km/h 91 mph

Power comparison

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

Chart data table
Vehicle	Value
Alfa RomeoRZ3.0 i V6	210 hp 157 kW
VolvoC70 Convertible2.0 20V Turbo	225 hp 168 kW

Volvo C70 Convertible 2.0 20V Turbo has 15 hp more than Alfa Romeo RZ 3.0 i V6.

The biggest power difference is between Alfa Romeo RZ 3.0 i V6 and Volvo C70 Convertible 2.0 20V Turbo: 15 hp (11 kW).

Torque comparison

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

Chart data table
Vehicle	Value
Alfa RomeoRZ3.0 i V6	245 Nm 181 lb-ft
VolvoC70 Convertible2.0 20V Turbo	310 Nm 229 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
Alfa RomeoRZ3.0 i V6	1,380 kg 3,042 lb
VolvoC70 Convertible2.0 20V Turbo	1,570 kg 3,461 lb

Top speed without limiter comparison

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

Chart data table
Vehicle	Value
Alfa RomeoRZ3.0 i V6	Unrestricted 240 km/h149 mph Restricted 230 km/h143 mph
VolvoC70 Convertible2.0 20V Turbo	235 km/h 146 mph

0-100 km/h comparison

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

Chart data table
Vehicle	Value
Alfa RomeoRZ3.0 i V6	7.5 s
VolvoC70 Convertible2.0 20V Turbo	7.9 s

Although Volvo C70 Convertible 2.0 20V Turbo has more power, Alfa Romeo RZ 3.0 i V6 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Alfa Romeo RZ 3.0 i V6 and Volvo C70 Convertible 2.0 20V Turbo: 0.4 s.

Power-to-weight comparison

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

Chart data table
Vehicle	Value
Alfa RomeoRZ3.0 i V6	152 hp/t 113 kW/t 6.6 kg/hp
VolvoC70 Convertible2.0 20V Turbo	143 hp/t 107 kW/t 7.0 kg/hp

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
Alfa RomeoRZ3.0 i V6	210 hp 157 kW	7.5 s	Unrestricted 240 km/h149 mph Restricted 230 km/h143 mph
VolvoC70 Convertible2.0 20V Turbo	225 hp 168 kW	7.9 s	235 km/h 146 mph

Most attractive quadrant

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

Vehicle

Performance score

Practicality score

Alfa RomeoRZ3.0 i V6

Power	210 hp 157 kW
0-100 km/h	7.5 s
Top speed Unrestricted 240 km/h149 mph Restricted 230 km/h143 mph

Doors/seats	2 doors 2 seats
Trunk	120 L 4.2 cu ft
Length	4,060 mm 159.8 in
Height	1,300 mm 51.2 in

VolvoC70 Convertible2.0 20V Turbo

Power	225 hp 168 kW
0-100 km/h	7.9 s
Top speed 235 km/h 146 mph

Doors/seats	2 doors 4 seats
Trunk	260 L 9.2 cu ft
Length	4,720 mm 185.8 in
Height	1,410 mm 55.5 in

Detailed score breakdown

Vehicle

Alfa RomeoRZ3.0 i V6

VolvoC70 Convertible2.0 20V Turbo

Power

210 hp

157 kW

225 hp

168 kW

Torque

245 Nm

181 lb-ft

310 Nm

229 lb-ft

Acceleration

7.5 s

7.9 s

Top speed

Unrestricted

240 km/h149 mph

Restricted

230 km/h143 mph

235 km/h

146 mph

Lightness

1,380 kg

3,042 lb

1,570 kg

3,461 lb

Fuel consumption

9.3 L/100 km

25.3 mpg US

30.4 mpg UK

Practicality

Doors/seats	2 doors 2 seats
Trunk	120 L 4.2 cu ft
Length	4,060 mm 159.8 in
Height	1,300 mm 51.2 in

Doors/seats	2 doors 4 seats
Trunk	260 L 9.2 cu ft
Length	4,720 mm 185.8 in
Height	1,410 mm 55.5 in

Range score

753 km

468 mi

Trunk score

120 L

4.2 cu ft

260 L

9.2 cu ft

Power-to-weight score

152 hp/t

113 kW/t

6.6 kg/hp

143 hp/t

107 kW/t

7.0 kg/hp

Overall

Fixed score

Fuel cost and annual usage

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

Average annual distanceDistance unitFuel price in your local currencyPrice unit

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
Vehicle	Alfa Romeo RZ 3.0 i V6
Consumption	9.3 L/100 km25.3 mpg US30.4 mpg UK
Cost / 100 km	16.28 LC100 km
Cost / 100 mi	26.19 LC100 mi
Annual fuel used	1,395 L369 US gal307 UK gal
Annual fuel cost	2,441 LC/year