Car comparison

BMW 1 Series Convertible (E88) 135ivsPanoz Esperante 4.6 i V8 32V

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

New comparison

BMW 1 Series Convertible (E88)

135i

306 hp2979 ccGasolineRWDManualTwin-turboCabriolet / convertible2008-2010

Panoz Esperante

4.6 i V8 32V

324 hp4601 ccGasolineRWDManualNaturally aspiratedCabriolet / convertible1999-2009

Comparison overview

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

Panoz Esperante 4.6 i V8 32V

Quickest 0-100 km/h
5.1 s
Most powerful
324 hp
242 kW
Highest torque
427 Nm
315 lb-ft
Lightest
1,450 kg
3,197 lb
Best power-to-weight
223 hp/t
167 kW/t
4.5 kg/hp
Best performance score
68/100

BMW 1 Series Convertible (E88) 135i

Fastest top speed
260 km/h
162 mph Unrestricted
250 km/h
155 mph Restricted
Lowest city consumption
13.3 L/100 km
17.7 mpg US
21.2 mpg UK
Lowest highway consumption
7.1 L/100 km
33.1 mpg US
39.8 mpg UK
Best overall score
58/100
Best economy score
82/100
Best practicality score
43/100

Specification comparison

Specification comparison
Model	BMW1 Series Convertible (E88)135i	PanozEsperante4.6 i V8 32V
Power	306hp228kW	324hp242kW
Torque	400Nm295lb-ft	427Nm315lb-ft
Curb weight	1,600kg3,527lb	1,450kg3,197lb
Gross weight	2,040kg4,497lb	-
Top speed	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Calculated	249 km/h 155 mph
To 99% top speed	79.1s99% target: 257 km/h / 160 mph Calculated	61.9s99% target: 247 km/h / 153 mph Calculated
0-100 km/h	5.6s	5.1s
0-200 km/h	20.6s Calculated	18.9s Calculated
0-60 mph	5.3s Calculated	4.8s Calculated
Fuel consumption	9.4L/100 km25mpg US30.1mpg UK	-
Fuel consumption city	13.3L/100 km17.7mpg US21.2mpg UK	13.8L/100 km17mpg US20.5mpg UK
Fuel consumption highway	7.1L/100 km33.1mpg US39.8mpg UK	10.2L/100 km23.1mpg US27.7mpg UK
Quarter mile	13.7s Calculated	13.3s Calculated
Power-to-weight	191hp/t143kW/t87hp/1000 lb Calculated	223hp/t167kW/t101hp/1000 lb Calculated
Torque-to-weight	250Nm/t167lb-ft/ton Calculated	294Nm/t197lb-ft/ton Calculated
Estimated range	564km350mi Calculated	-
Displacement	2,979cc182cu in	4,601cc281cu in
Length	4,360mm172in	4,475mm176in
Width	1,748mm69in	1,860mm73in
Height	1,411mm56in	1,355mm53in
Wheelbase	2,660mm105in	2,715mm107in
Front track	1,474mm58in	1,545mm61in
Rear track	1,507mm59in	1,580mm62in
Ground clearance	140mm6in	-
Trunk volume	260L	-
Max trunk volume	305L	-
Doors	2	2
Seats	4	2
Fuel tank	53L	58L

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.

BMW 1 Series Convertible (E88) 135iPanoz Esperante 4.6 i V8 32VPowerTorque

Dyno simulation data table
Vehicle	Peak power RPM	Peak torque RPM	Max engine speed
BMW1 Series Convertible (E88)135i	5,800 rpm	1,300-5,000 rpm	6,050 rpm
PanozEsperante4.6 i V8 32V	6,000 rpm	4,750 rpm	6,250 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
Metric	BMW1 Series Convertible (E88)135i	PanozEsperante4.6 i V8 32V
	Acceleration checkpoints
0-60 mph 0-97 km/h	5.3 s	4.8 s
0-100 km/h 0-62 mph	5.6 s	5.1 s
0-200 km/h 0-124 mph	20.6 s	18.9 s
Top speed	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph Limited	249 km/h 155 mph
	Drag race simulation
60 ft 18 m	2.2 s	2.2 s
330 ft 101 m	6.0 s	5.8 s
1/8 mile 201 m	9.0 s	8.7 s
1000 ft 305 m	11.6 s	11.2 s
1/4 mile 402 m	13.7 s	13.3 s
Trap speed 1/4 mile 402 m	168 km/h 104 mph	173 km/h 108 mph

Power comparison

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

Chart data table
Vehicle	Value
BMW1 Series Convertible (E88)135i	306 hp 228 kW
PanozEsperante4.6 i V8 32V	324 hp 242 kW

Panoz Esperante 4.6 i V8 32V has 18 hp more than BMW 1 Series Convertible (E88) 135i.

The biggest power difference is between BMW 1 Series Convertible (E88) 135i and Panoz Esperante 4.6 i V8 32V: 18 hp (13 kW).

Torque comparison

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

Chart data table
Vehicle	Value
BMW1 Series Convertible (E88)135i	400 Nm 295 lb-ft
PanozEsperante4.6 i V8 32V	427 Nm 315 lb-ft

Curb weight comparison

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

Chart data table
Vehicle	Value
BMW1 Series Convertible (E88)135i	1,600 kg 3,527 lb
PanozEsperante4.6 i V8 32V	1,450 kg 3,197 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
BMW1 Series Convertible (E88)135i	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph
PanozEsperante4.6 i V8 32V	249 km/h 155 mph

0-100 km/h comparison

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

Chart data table
Vehicle	Value
BMW1 Series Convertible (E88)135i	5.6 s
PanozEsperante4.6 i V8 32V	5.1 s

The biggest 0-100 km/h difference is between Panoz Esperante 4.6 i V8 32V and BMW 1 Series Convertible (E88) 135i: 0.5 s.

Power-to-weight comparison

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

Chart data table
Vehicle	Value
BMW1 Series Convertible (E88)135i	191 hp/t 143 kW/t 5.2 kg/hp
PanozEsperante4.6 i V8 32V	223 hp/t 167 kW/t 4.5 kg/hp

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
Vehicle	Power	Acceleration	Top speed
BMW1 Series Convertible (E88)135i	306 hp 228 kW	5.6 s	Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph
PanozEsperante4.6 i V8 32V	324 hp 242 kW	5.1 s	249 km/h 155 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

BMW1 Series Convertible (E88)135i

Power	306 hp 228 kW
0-100 km/h	5.6 s
Top speed Unrestricted 260 km/h162 mph Restricted 250 km/h155 mph

Doors/seats	2 doors 4 seats
Trunk	260 L 9.2 cu ft
Length	4,360 mm 171.7 in
Height	1,411 mm 55.6 in

PanozEsperante4.6 i V8 32V

Power	324 hp 242 kW
0-100 km/h	5.1 s
Top speed 249 km/h 155 mph

Doors/seats	2 doors 2 seats
Trunk	-
Length	4,475 mm 176.2 in
Height	1,355 mm 53.3 in

Detailed score breakdown

Vehicle

BMW1 Series Convertible (E88)135i

PanozEsperante4.6 i V8 32V

Power

306 hp

228 kW

324 hp

242 kW

Torque

400 Nm

295 lb-ft

427 Nm

315 lb-ft

Acceleration

5.6 s

5.1 s

Top speed

Unrestricted

260 km/h162 mph

Restricted

250 km/h155 mph

249 km/h

155 mph

Lightness

1,600 kg

3,527 lb

1,450 kg

3,197 lb

Fuel consumption

9.4 L/100 km

25.0 mpg US

30.1 mpg UK

Practicality

Doors/seats	2 doors 4 seats
Trunk	260 L 9.2 cu ft
Length	4,360 mm 171.7 in
Height	1,411 mm 55.6 in

Doors/seats	2 doors 2 seats
Trunk	-
Length	4,475 mm 176.2 in
Height	1,355 mm 53.3 in

Range score

564 km

350 mi

Trunk score

260 L

9.2 cu ft

Power-to-weight score

191 hp/t

143 kW/t

5.2 kg/hp

223 hp/t

167 kW/t

4.5 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	BMW 1 Series Convertible (E88) 135i
Consumption	9.4 L/100 km25 mpg US30.1 mpg UK
Cost / 100 km	16.45 LC100 km
Cost / 100 mi	26.47 LC100 mi
Annual fuel used	1,410 L372 US gal310 UK gal
Annual fuel cost	2,468 LC/year