Car comparison

Lexus IS II (XE20) 250 V6vsAlfa Romeo 156 (932) · Facelift 2003 2.4 JTD

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

New comparison

Lexus IS II (XE20)

250 V6

208 hp2500 ccGasolineRWDAutomaticNaturally aspiratedSedan2005-2008
VS

Alfa Romeo 156 (932) · Facelift 2003

2.4 JTD

175 hp2387 ccDieselFWDManualTurbochargedSedan2003-2006

Comparison overview

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

Best choices

Alfa Romeo 156 (932) Facelift 2003 2.4 JTD

  • Quickest 0-100 km/h
    8.3 s
  • Highest torque
    385 Nm
    284 lb-ft
  • Lightest
    1,385 kg
    3,053 lb
  • Lowest combined fuel consumption
    6.6 L/100 km
    35.6 mpg US
    42.8 mpg UK
  • Lowest city consumption
    8.8 L/100 km
    26.7 mpg US
    32.1 mpg UK
  • Lowest highway consumption
    5.3 L/100 km
    44.4 mpg US
    53.3 mpg UK
  • Best estimated range
    955 km
    593 mi
  • Best overall score
    56/100
  • Best performance score
    50/100
  • Best economy score
    89/100

Lexus IS II (XE20) 250 V6

  • Fastest top speed
    240 km/h
    149 mph Unrestricted
    225 km/h
    140 mph Restricted
  • Most powerful
    208 hp
    155 kW
  • Best power-to-weight
    128 hp/t
    95 kW/t
    7.8 kg/hp
  • Largest trunk
    378 L
  • Best practicality score
    70/100

Specification comparison

Specification comparison
ModelLexusIS II (XE20)250 V6Alfa Romeo156 (932)Facelift 20032.4 JTD
Power
208hp155kW
175hp130kW
Torque
252Nm186lb-ft
385Nm284lb-ft
Curb weight
1,625kg3,583lb
1,385kg3,053lb
Gross weight
2,045kg4,508lb
-
Top speed
Unrestricted
240 km/h149 mph
Restricted
225 km/h140 mph
Calculated
Unrestricted
235 km/h146 mph
Restricted
225 km/h140 mph
Calculated
To 99% top speed
78.3s99% target: 238 km/h / 148 mph
Calculated
75.5s99% target: 233 km/h / 145 mph
Calculated
0-100 km/h
8.4s
8.3s
0-200 km/h
29.3s
Calculated
30.1s
Calculated
0-60 mph
8.0s
Calculated
7.9s
Calculated
Fuel consumption
9.1L/100 km25.8mpg US31.0mpg UK
6.6L/100 km35.6mpg US42.8mpg UK
Fuel consumption city
12.7L/100 km18.5mpg US22.2mpg UK
8.8L/100 km26.7mpg US32.1mpg UK
Fuel consumption highway
7L/100 km33.6mpg US40.4mpg UK
5.3L/100 km44.4mpg US53.3mpg UK
Quarter mile
16.1s
Calculated
16.0s
Calculated
Power-to-weight
128hp/t95kW/t58hp/1000 lb
Calculated
126hp/t94kW/t57hp/1000 lb
Calculated
Torque-to-weight
155Nm/t104lb-ft/ton
Calculated
278Nm/t186lb-ft/ton
Calculated
Estimated range
714km444mi
Calculated
955km593mi
Calculated
Displacement
2,500cc153cu in
2,387cc146cu in
Length
4,575mm180in
4,435mm175in
Width
1,800mm71in
1,743mm69in
Height
1,425mm56in
1,430mm56in
Wheelbase
2,730mm107in
2,595mm102in
Front track
1,535mm60in
1,511mm59in
Rear track
1,545mm61in
1,519mm60in
Ground clearance
145mm6in
-
Trunk volume
378L
378L
Doors
4
4
Seats
5
5
Fuel tank
65L
63L

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.

Lexus IS II (XE20) 250 V6Alfa Romeo 156 (932) Facelift 2003 2.4 JTDPowerTorque
  • Lexus IS II (XE20) 250 V6: Power / Torque
  • Alfa Romeo 156 (932) Facelift 2003 2.4 JTD: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
LexusIS II (XE20)250 V66,400 rpm4,800 rpm6,650 rpm
Alfa Romeo156 (932)Facelift 20032.4 JTD4,000 rpm2,000 rpm4,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricLexusIS II (XE20)250 V6Alfa Romeo156 (932)Facelift 20032.4 JTD
Acceleration checkpoints
0-60 mph
0-97 km/h
8.0 s
7.9 s
0-100 km/h
0-62 mph
8.4 s
8.3 s
0-200 km/h
0-124 mph
29.3 s
30.1 s
Top speed
Unrestricted
240 km/h149 mph
Restricted
225 km/h140 mph
Likely limited
Unrestricted
235 km/h146 mph
Restricted
225 km/h140 mph
Likely limited
Drag race simulation
60 ft
18 m
2.9 s
2.9 s
330 ft
101 m
7.3 s
7.3 s
1/8 mile
201 m
10.7 s
10.7 s
1000 ft
305 m
13.7 s
13.6 s
1/4 mile
402 m
16.1 s
16.0 s
Trap speed
1/4 mile
402 m
152 km/h
95 mph
152 km/h
94 mph

Power comparison

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

Chart data table
VehicleValue
LexusIS II (XE20)250 V6
208 hp
155 kW
Alfa Romeo156 (932)Facelift 20032.4 JTD
175 hp
130 kW

Lexus IS II (XE20) 250 V6 has 33 hp more than Alfa Romeo 156 (932) Facelift 2003 2.4 JTD.

The biggest power difference is between Alfa Romeo 156 (932) Facelift 2003 2.4 JTD and Lexus IS II (XE20) 250 V6: 33 hp (25 kW).

Torque comparison

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

Chart data table
VehicleValue
LexusIS II (XE20)250 V6
252 Nm
186 lb-ft
Alfa Romeo156 (932)Facelift 20032.4 JTD
385 Nm
284 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
LexusIS II (XE20)250 V6
1,625 kg
3,583 lb
Alfa Romeo156 (932)Facelift 20032.4 JTD
1,385 kg
3,053 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
LexusIS II (XE20)250 V6
Unrestricted
240 km/h149 mph
Restricted
225 km/h140 mph
Alfa Romeo156 (932)Facelift 20032.4 JTD
Unrestricted
235 km/h146 mph
Restricted
225 km/h140 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
LexusIS II (XE20)250 V68.4 s
Alfa Romeo156 (932)Facelift 20032.4 JTD8.3 s

Although Lexus IS II (XE20) 250 V6 has more power, Alfa Romeo 156 (932) Facelift 2003 2.4 JTD is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Alfa Romeo 156 (932) Facelift 2003 2.4 JTD and Lexus IS II (XE20) 250 V6: 0.1 s.

Fuel consumption comparison

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

Chart data table
VehicleValue
LexusIS II (XE20)250 V6
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
Alfa Romeo156 (932)Facelift 20032.4 JTD
6.6 L/100 km
35.6 mpg US
42.8 mpg UK

The biggest fuel consumption difference is between Alfa Romeo 156 (932) Facelift 2003 2.4 JTD and Lexus IS II (XE20) 250 V6: 2.5 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
LexusIS II (XE20)250 V6
128 hp/t
95 kW/t
7.8 kg/hp
Alfa Romeo156 (932)Facelift 20032.4 JTD
126 hp/t
94 kW/t
7.9 kg/hp

Estimated range comparison

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

Chart data table
VehicleValue
LexusIS II (XE20)250 V6
714 km
444 mi
Alfa Romeo156 (932)Facelift 20032.4 JTD
955 km
593 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
LexusIS II (XE20)250 V6
208 hp
155 kW
8.4 s
Unrestricted
240 km/h149 mph
Restricted
225 km/h140 mph
Alfa Romeo156 (932)Facelift 20032.4 JTD
175 hp
130 kW
8.3 s
Unrestricted
235 km/h146 mph
Restricted
225 km/h140 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
LexusIS II (XE20)250 V6
Power
208 hp
155 kW
0-100 km/h8.4 s
Top speed
Unrestricted
240 km/h149 mph
Restricted
225 km/h140 mph
Doors/seats
4 doors
5 seats
Trunk
378 L
13.3 cu ft
Length
4,575 mm
180.1 in
Height
1,425 mm
56.1 in
Alfa Romeo156 (932)Facelift 20032.4 JTD
Power
175 hp
130 kW
0-100 km/h8.3 s
Top speed
Unrestricted
235 km/h146 mph
Restricted
225 km/h140 mph
Doors/seats
4 doors
5 seats
Trunk
378 L
13.3 cu ft
Length
4,435 mm
174.6 in
Height
1,430 mm
56.3 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
LexusIS II (XE20)250 V6
Power
208 hp
155 kW
0-100 km/h8.4 s
Top speed
Unrestricted
240 km/h149 mph
Restricted
225 km/h140 mph
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
Alfa Romeo156 (932)Facelift 20032.4 JTD
Power
175 hp
130 kW
0-100 km/h8.3 s
Top speed
Unrestricted
235 km/h146 mph
Restricted
225 km/h140 mph
6.6 L/100 km
35.6 mpg US
42.8 mpg UK

Alfa Romeo 156 (932) Facelift 2003 2.4 JTD 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
LexusIS II (XE20)250 V6
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
8.4 s
Alfa Romeo156 (932)Facelift 20032.4 JTD
6.6 L/100 km
35.6 mpg US
42.8 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
LexusIS II (XE20)250 V6
128 hp/t
95 kW/t
7.8 kg/hp
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
Alfa Romeo156 (932)Facelift 20032.4 JTD
126 hp/t
94 kW/t
7.9 kg/hp
6.6 L/100 km
35.6 mpg US
42.8 mpg UK

Detailed score breakdown

Detailed score breakdown
VehicleLexusIS II (XE20)250 V6Alfa Romeo156 (932)Facelift 20032.4 JTD
Power
208 hp
155 kW
175 hp
130 kW
Torque
252 Nm
186 lb-ft
385 Nm
284 lb-ft
Acceleration
8.4 s
8.3 s
Top speed
Unrestricted
240 km/h149 mph
Restricted
225 km/h140 mph
Unrestricted
235 km/h146 mph
Restricted
225 km/h140 mph
Lightness
1,625 kg
3,583 lb
1,385 kg
3,053 lb
Fuel consumption
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
6.6 L/100 km
35.6 mpg US
42.8 mpg UK
Practicality
Doors/seats
4 doors
5 seats
Trunk
378 L
13.3 cu ft
Length
4,575 mm
180.1 in
Height
1,425 mm
56.1 in
Doors/seats
4 doors
5 seats
Trunk
378 L
13.3 cu ft
Length
4,435 mm
174.6 in
Height
1,430 mm
56.3 in
Range score
714 km
444 mi
955 km
593 mi
Trunk score
378 L
13.3 cu ft
378 L
13.3 cu ft
Power-to-weight score
128 hp/t
95 kW/t
7.8 kg/hp
126 hp/t
94 kW/t
7.9 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
VehicleLexus IS II (XE20) 250 V6Alfa Romeo 156 (932) Facelift 2003 2.4 JTD
Consumption9.1 L/100 km25.8 mpg US31 mpg UK6.6 L/100 km35.6 mpg US42.8 mpg UK
Cost / 100 km15.92 LC100 km11.55 LC100 km
Cost / 100 mi25.63 LC100 mi18.59 LC100 mi
Annual fuel used1,365 L361 US gal300 UK gal990 L262 US gal218 UK gal
Annual fuel cost2,389 LC/year1,733 LC/year

Head-to-head comparisons

Lexus IS II (XE20) 250 V6

  • Has 33 hp more
  • Has 5 km/h (3 mph) higher top speed
  • Has 2 hp/t better power-to-weight

Pros

  • Highest top speed
  • Most powerful
  • Best power-to-weight ratio
  • Largest trunk

Cons

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

Alfa Romeo 156 (932) Facelift 2003 2.4 JTD

  • Has 133 Nm more
  • Is 240 kg lighter
  • Is 0.1 s quicker from 0-100 km/h
  • Uses 2.5 L/100 km less fuel
  • Has 240 km (149 mi) more estimated range

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest torque
  • Lightest
  • Lowest combined fuel consumption
  • Best estimated range

Cons

  • Lowest power
  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
Lexus IS II (XE20) 250 V6
Alfa Romeo 156 (932) 2.4 JTD
Compare selected cars
2 vehicles selected

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