Car comparison

Alfa Romeo RZ 3.0 i V6vsMercedes-Benz CLK (A208) CLK 320 V6

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
VS

Mercedes-Benz CLK (A208)

CLK 320 V6

218 hp3199 ccGasolineRWDAutomaticNaturally aspiratedCabriolet / convertible1998-1999

Comparison overview

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

Best choices

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 combined fuel consumption
    9.3 L/100 km
    25.3 mpg US
    30.4 mpg UK
  • 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 estimated range
    753 km
    468 mi
  • Best performance score
    51/100
  • Best economy score
    82/100

Specification comparison

Specification comparison
ModelAlfa RomeoRZ3.0 i V6Mercedes-BenzCLK (A208)CLK 320 V6
Power
210hp157kW
218hp163kW
Torque
245Nm181lb-ft
310Nm229lb-ft
Curb weight
1,380kg3,042lb
1,620kg3,571lb
Gross weight
1,550kg3,417lb
2,070kg4,564lb
Top speed
Unrestricted
240 km/h149 mph
Restricted
230 km/h143 mph
Calculated
236 km/h
147 mph
To 99% top speed
95.9s99% target: 238 km/h / 148 mph
Calculated
103.4s99% target: 234 km/h / 145 mph
Calculated
0-100 km/h
7.5s
8.3s
0-200 km/h
31.3s
Calculated
35.7s
Calculated
0-60 mph
7.1s
Calculated
7.9s
Calculated
Fuel consumption
9.3L/100 km25.3mpg US30.4mpg UK
10.9L/100 km21.6mpg US25.9mpg UK
Fuel consumption city
13.2L/100 km17.8mpg US21.4mpg UK
15.7L/100 km15mpg US18.0mpg UK
Fuel consumption highway
7.2L/100 km32.7mpg US39.2mpg UK
8.2L/100 km28.7mpg US34.4mpg UK
Quarter mile
15.4s
Calculated
16.0s
Calculated
Power-to-weight
152hp/t113kW/t69hp/1000 lb
Calculated
135hp/t100kW/t61hp/1000 lb
Calculated
Torque-to-weight
178Nm/t119lb-ft/ton
Calculated
191Nm/t128lb-ft/ton
Calculated
Estimated range
753km468mi
Calculated
569km353mi
Calculated
Displacement
2,959cc181cu in
3,199cc195cu in
Length
4,060mm160in
4,567mm180in
Width
1,730mm68in
1,722mm68in
Height
1,300mm51in
1,380mm54in
Wheelbase
2,510mm99in
2,690mm106in
Front track
1,465mm58in
1,505mm59in
Rear track
1,425mm56in
1,474mm58in
Trunk volume
120L
237L
Max trunk volume
390L
350L
Doors
2
2
Seats
2
4
Fuel tank
70L
62L

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 V6Mercedes-Benz CLK (A208) CLK 320 V6PowerTorque
  • Alfa Romeo RZ 3.0 i V6: Power / Torque
  • Mercedes-Benz CLK (A208) CLK 320 V6: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
Alfa RomeoRZ3.0 i V66,200 rpm4,500 rpm6,450 rpm
Mercedes-BenzCLK (A208)CLK 320 V65,700 rpm3,000-4,600 rpm5,950 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricAlfa RomeoRZ3.0 i V6Mercedes-BenzCLK (A208)CLK 320 V6
Acceleration checkpoints
0-60 mph
0-97 km/h
7.1 s
7.9 s
0-100 km/h
0-62 mph
7.5 s
8.3 s
0-200 km/h
0-124 mph
31.3 s
35.7 s
Top speed
Unrestricted
240 km/h149 mph
Restricted
230 km/h143 mph
Likely limited
236 km/h
147 mph
Drag race simulation
60 ft
18 m
2.5 s
2.6 s
330 ft
101 m
6.7 s
7.0 s
1/8 mile
201 m
10.1 s
10.5 s
1000 ft
305 m
13.0 s
13.5 s
1/4 mile
402 m
15.4 s
16.0 s
Trap speed
1/4 mile
402 m
151 km/h
94 mph
145 km/h
90 mph

Power comparison

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

Chart data table
VehicleValue
Alfa RomeoRZ3.0 i V6
210 hp
157 kW
Mercedes-BenzCLK (A208)CLK 320 V6
218 hp
163 kW

Mercedes-Benz CLK (A208) CLK 320 V6 has 8 hp more than Alfa Romeo RZ 3.0 i V6.

The biggest power difference is between Alfa Romeo RZ 3.0 i V6 and Mercedes-Benz CLK (A208) CLK 320 V6: 8 hp (6 kW).

Torque comparison

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

Chart data table
VehicleValue
Alfa RomeoRZ3.0 i V6
245 Nm
181 lb-ft
Mercedes-BenzCLK (A208)CLK 320 V6
310 Nm
229 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
Alfa RomeoRZ3.0 i V6
1,380 kg
3,042 lb
Mercedes-BenzCLK (A208)CLK 320 V6
1,620 kg
3,571 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
Alfa RomeoRZ3.0 i V6
Unrestricted
240 km/h149 mph
Restricted
230 km/h143 mph
Mercedes-BenzCLK (A208)CLK 320 V6
236 km/h
147 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
Alfa RomeoRZ3.0 i V67.5 s
Mercedes-BenzCLK (A208)CLK 320 V68.3 s

Although Mercedes-Benz CLK (A208) CLK 320 V6 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 Mercedes-Benz CLK (A208) CLK 320 V6: 0.8 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
Alfa RomeoRZ3.0 i V6
9.3 L/100 km
25.3 mpg US
30.4 mpg UK
Mercedes-BenzCLK (A208)CLK 320 V6
10.9 L/100 km
21.6 mpg US
25.9 mpg UK

The biggest fuel consumption difference is between Alfa Romeo RZ 3.0 i V6 and Mercedes-Benz CLK (A208) CLK 320 V6: 1.6 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
Alfa RomeoRZ3.0 i V6
152 hp/t
113 kW/t
6.6 kg/hp
Mercedes-BenzCLK (A208)CLK 320 V6
135 hp/t
100 kW/t
7.4 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
Alfa RomeoRZ3.0 i V6
753 km
468 mi
Mercedes-BenzCLK (A208)CLK 320 V6
569 km
353 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
Alfa RomeoRZ3.0 i V6
210 hp
157 kW
7.5 s
Unrestricted
240 km/h149 mph
Restricted
230 km/h143 mph
Mercedes-BenzCLK (A208)CLK 320 V6
218 hp
163 kW
8.3 s
236 km/h
147 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
Alfa RomeoRZ3.0 i V6
Power
210 hp
157 kW
0-100 km/h7.5 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
Mercedes-BenzCLK (A208)CLK 320 V6
Power
218 hp
163 kW
0-100 km/h8.3 s
Top speed
236 km/h
147 mph
Doors/seats
2 doors
4 seats
Trunk
237 L
8.4 cu ft
Length
4,567 mm
179.8 in
Height
1,380 mm
54.3 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
Alfa RomeoRZ3.0 i V6
Power
210 hp
157 kW
0-100 km/h7.5 s
Top speed
Unrestricted
240 km/h149 mph
Restricted
230 km/h143 mph
9.3 L/100 km
25.3 mpg US
30.4 mpg UK
Mercedes-BenzCLK (A208)CLK 320 V6
Power
218 hp
163 kW
0-100 km/h8.3 s
Top speed
236 km/h
147 mph
10.9 L/100 km
21.6 mpg US
25.9 mpg UK

Alfa Romeo RZ 3.0 i V6 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
Alfa RomeoRZ3.0 i V6
9.3 L/100 km
25.3 mpg US
30.4 mpg UK
7.5 s
Mercedes-BenzCLK (A208)CLK 320 V6
10.9 L/100 km
21.6 mpg US
25.9 mpg UK
8.3 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
Alfa RomeoRZ3.0 i V6
152 hp/t
113 kW/t
6.6 kg/hp
9.3 L/100 km
25.3 mpg US
30.4 mpg UK
Mercedes-BenzCLK (A208)CLK 320 V6
135 hp/t
100 kW/t
7.4 kg/hp
10.9 L/100 km
21.6 mpg US
25.9 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleAlfa RomeoRZ3.0 i V6Mercedes-BenzCLK (A208)CLK 320 V6
Power
210 hp
157 kW
218 hp
163 kW
Torque
245 Nm
181 lb-ft
310 Nm
229 lb-ft
Acceleration
7.5 s
8.3 s
Top speed
Unrestricted
240 km/h149 mph
Restricted
230 km/h143 mph
236 km/h
147 mph
Lightness
1,380 kg
3,042 lb
1,620 kg
3,571 lb
Fuel consumption
9.3 L/100 km
25.3 mpg US
30.4 mpg UK
10.9 L/100 km
21.6 mpg US
25.9 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
237 L
8.4 cu ft
Length
4,567 mm
179.8 in
Height
1,380 mm
54.3 in
Range score
753 km
468 mi
569 km
353 mi
Trunk score
120 L
4.2 cu ft
237 L
8.4 cu ft
Power-to-weight score
152 hp/t
113 kW/t
6.6 kg/hp
135 hp/t
100 kW/t
7.4 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
VehicleAlfa Romeo RZ 3.0 i V6Mercedes-Benz CLK (A208) CLK 320 V6
Consumption9.3 L/100 km25.3 mpg US30.4 mpg UK10.9 L/100 km21.6 mpg US25.9 mpg UK
Cost / 100 km16.28 LC100 km19.08 LC100 km
Cost / 100 mi26.19 LC100 mi30.70 LC100 mi
Annual fuel used1,395 L369 US gal307 UK gal1,635 L432 US gal360 UK gal
Annual fuel cost2,441 LC/year2,861 LC/year

Head-to-head comparisons

Alfa Romeo RZ 3.0 i V6

  • Is 240 kg lighter
  • Is 0.8 s quicker from 0-100 km/h
  • Has 4 km/h (2 mph) higher top speed
  • Uses 1.6 L/100 km less fuel
  • Has 18 hp/t better power-to-weight
  • Has 184 km (114 mi) more estimated range

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Lightest
  • Lowest combined fuel consumption
  • Best power-to-weight ratio
  • Best estimated range

Cons

  • Lowest power
  • Smallest trunk

Mercedes-Benz CLK (A208) CLK 320 V6

  • Has 8 hp more
  • Has 65 Nm more
  • Has 117 L more trunk volume

Pros

  • Most powerful
  • Highest torque
  • Largest trunk

Cons

  • Slowest 0-100 km/h
  • Highest combined fuel consumption
  • Heaviest
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Alfa Romeo RZ 3.0 i V6
Mercedes-Benz CLK (A208) CLK 320 V6
Compare selected cars
2 vehicles selected

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