Car comparison

Lexus IS II (XE20) 250 V6vsAlfa Romeo 156 (932) · Facelift 2003 2.5 i V6 24V

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

Alfa Romeo 156 (932) · Facelift 2003

2.5 i V6 24V

192 hp2492 ccGasolineFWDAutomaticNaturally aspiratedSedan2003-2006

Comparison overview

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

Lexus IS II (XE20) 250 V6

Quickest 0-100 km/h
8.4 s
Fastest top speed
240 km/h
149 mph Unrestricted
225 km/h
140 mph Restricted
Most powerful
208 hp
155 kW
Highest torque
252 Nm
186 lb-ft
Lowest combined fuel consumption
9.1 L/100 km
25.8 mpg US
31.0 mpg UK
Lowest city consumption
12.7 L/100 km
18.5 mpg US
22.2 mpg UK
Lowest highway consumption
7.0 L/100 km
33.6 mpg US
40.4 mpg UK
Best estimated range
714 km
444 mi
Largest trunk
378 L
Best overall score
55/100
Best performance score
48/100
Best economy score
82/100
Best practicality score
70/100

Alfa Romeo 156 (932) Facelift 2003 2.5 i V6 24V

Lightest
1,405 kg
3,097 lb
Best power-to-weight
137 hp/t
102 kW/t
7.3 kg/hp

Specification comparison

Specification comparison
Model	LexusIS II (XE20)250 V6	Alfa Romeo156 (932)Facelift 20032.5 i V6 24V
Power	208hp155kW	192hp143kW
Torque	252Nm186lb-ft	218Nm161lb-ft
Curb weight	1,625kg3,583lb	1,405kg3,097lb
Gross weight	2,045kg4,508lb	1,850kg4,079lb
Top speed	Unrestricted 240 km/h149 mph Restricted 225 km/h140 mph Calculated	227 km/h 141 mph
To 99% top speed	78.3s99% target: 238 km/h / 148 mph Calculated	72.6s99% target: 225 km/h / 140 mph Calculated
0-100 km/h	8.4s	8.5s
0-200 km/h	29.3s Calculated	32.7s Calculated
0-60 mph	8.0s Calculated	8.1s Calculated
Fuel consumption	9.1L/100 km25.8mpg US31.0mpg UK	11.9L/100 km19.8mpg US23.7mpg UK
Fuel consumption city	12.7L/100 km18.5mpg US22.2mpg UK	17.5L/100 km13.4mpg US16.1mpg UK
Fuel consumption highway	7L/100 km33.6mpg US40.4mpg UK	8.6L/100 km27.4mpg US32.8mpg UK
Quarter mile	16.1s Calculated	16.2s Calculated
Power-to-weight	128hp/t95kW/t58hp/1000 lb Calculated	137hp/t102kW/t62hp/1000 lb Calculated
Torque-to-weight	155Nm/t104lb-ft/ton Calculated	155Nm/t104lb-ft/ton Calculated
Estimated range	714km444mi Calculated	529km329mi Calculated
Displacement	2,500cc153cu in	2,492cc152cu 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	1,498mm59in
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 2.5 i V6 24VPowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
LexusIS II (XE20)250 V6	6,400 rpm	4,800 rpm	6,650 rpm
Alfa Romeo156 (932)Facelift 20032.5 i V6 24V	6,300 rpm	5,000 rpm	6,550 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	LexusIS II (XE20)250 V6	Alfa Romeo156 (932)Facelift 20032.5 i V6 24V
	Acceleration checkpoints
0-60 mph 0-97 km/h	8.0 s	8.1 s
0-100 km/h 0-62 mph	8.4 s	8.5 s
0-200 km/h 0-124 mph	29.3 s	32.7 s
Top speed	Unrestricted 240 km/h149 mph Restricted 225 km/h140 mph Likely limited	227 km/h 141 mph
	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	10.8 s
1000 ft 305 m	13.7 s	13.7 s
1/4 mile 402 m	16.1 s	16.2 s
Trap speed 1/4 mile 402 m	152 km/h 95 mph	150 km/h 93 mph

Power comparison

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

Chart data table
Vehicle	Value
LexusIS II (XE20)250 V6	208 hp 155 kW
Alfa Romeo156 (932)Facelift 20032.5 i V6 24V	192 hp 143 kW

Lexus IS II (XE20) 250 V6 has 16 hp more than Alfa Romeo 156 (932) Facelift 2003 2.5 i V6 24V.

The biggest power difference is between Alfa Romeo 156 (932) Facelift 2003 2.5 i V6 24V and Lexus IS II (XE20) 250 V6: 16 hp (12 kW).

Torque comparison

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

Chart data table
Vehicle	Value
LexusIS II (XE20)250 V6	252 Nm 186 lb-ft
Alfa Romeo156 (932)Facelift 20032.5 i V6 24V	218 Nm 161 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
LexusIS II (XE20)250 V6	1,625 kg 3,583 lb
Alfa Romeo156 (932)Facelift 20032.5 i V6 24V	1,405 kg 3,097 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
LexusIS II (XE20)250 V6	Unrestricted 240 km/h149 mph Restricted 225 km/h140 mph
Alfa Romeo156 (932)Facelift 20032.5 i V6 24V	227 km/h 141 mph

0-100 km/h comparison

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

Chart data table
Vehicle	Value
LexusIS II (XE20)250 V6	8.4 s
Alfa Romeo156 (932)Facelift 20032.5 i V6 24V	8.5 s

The biggest 0-100 km/h difference is between Lexus IS II (XE20) 250 V6 and Alfa Romeo 156 (932) Facelift 2003 2.5 i V6 24V: 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
Vehicle	Value
LexusIS II (XE20)250 V6	9.1 L/100 km 25.8 mpg US 31.0 mpg UK
Alfa Romeo156 (932)Facelift 20032.5 i V6 24V	11.9 L/100 km 19.8 mpg US 23.7 mpg UK

The biggest fuel consumption difference is between Lexus IS II (XE20) 250 V6 and Alfa Romeo 156 (932) Facelift 2003 2.5 i V6 24V: 2.8 L/100 km.

Power-to-weight comparison

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

Chart data table
Vehicle	Value
LexusIS II (XE20)250 V6	128 hp/t 95 kW/t 7.8 kg/hp
Alfa Romeo156 (932)Facelift 20032.5 i V6 24V	137 hp/t 102 kW/t 7.3 kg/hp

Estimated range comparison

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

Chart data table
Vehicle	Value
LexusIS II (XE20)250 V6	714 km 444 mi
Alfa Romeo156 (932)Facelift 20032.5 i V6 24V	529 km 329 mi

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top 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 20032.5 i V6 24V	192 hp 143 kW	8.5 s	227 km/h 141 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

LexusIS II (XE20)250 V6

Power	208 hp 155 kW
0-100 km/h	8.4 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 20032.5 i V6 24V

Power	192 hp 143 kW
0-100 km/h	8.5 s
Top speed 227 km/h 141 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.

Vehicle

Performance score

Fuel economy score

LexusIS II (XE20)250 V6

Power	208 hp 155 kW
0-100 km/h	8.4 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 20032.5 i V6 24V

Power	192 hp 143 kW
0-100 km/h	8.5 s
Top speed 227 km/h 141 mph

11.9 L/100 km

19.8 mpg US

23.7 mpg UK

Lexus IS II (XE20) 250 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
Vehicle	Fuel consumption, L/100 km	0-100 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 20032.5 i V6 24V	11.9 L/100 km 19.8 mpg US 23.7 mpg UK	8.5 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
Vehicle	Power-to-weight, hp/t	Fuel 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 20032.5 i V6 24V	137 hp/t 102 kW/t 7.3 kg/hp	11.9 L/100 km 19.8 mpg US 23.7 mpg UK

Detailed score breakdown

Vehicle

LexusIS II (XE20)250 V6

Alfa Romeo156 (932)Facelift 20032.5 i V6 24V

Power

208 hp

155 kW

192 hp

143 kW

Torque

252 Nm

186 lb-ft

218 Nm

161 lb-ft

Acceleration

8.4 s

8.5 s

Top speed

Unrestricted

240 km/h149 mph

Restricted

225 km/h140 mph

227 km/h

141 mph

Lightness

1,625 kg

3,583 lb

1,405 kg

3,097 lb

Fuel consumption

9.1 L/100 km

25.8 mpg US

31.0 mpg UK

11.9 L/100 km

19.8 mpg US

23.7 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

529 km

329 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

137 hp/t

102 kW/t

7.3 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	Lexus IS II (XE20) 250 V6	Alfa Romeo 156 (932) Facelift 2003 2.5 i V6 24V
Consumption	9.1 L/100 km25.8 mpg US31 mpg UK	11.9 L/100 km19.8 mpg US23.7 mpg UK
Cost / 100 km	15.92 LC100 km	20.83 LC100 km
Cost / 100 mi	25.63 LC100 mi	33.51 LC100 mi
Annual fuel used	1,365 L361 US gal300 UK gal	1,785 L472 US gal393 UK gal
Annual fuel cost	2,389 LC/year	3,124 LC/year