Car comparison

BMW Z4 (G29) M40ivsBristol Bullet 4.8 V8

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

New comparison

BMW Z4 (G29)

M40i

340 hp2998 ccGasolineAWDAutomaticTurbochargedRoadster2018-2022
VS

Bristol Bullet

4.8 V8

374 hp4799 ccGasolineRWDAutomaticNaturally aspiratedRoadster2017-present

Comparison overview

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

Best choices

Bristol Bullet 4.8 V8

  • Quickest 0-100 km/h
    3.8 s
  • Most powerful
    374 hp
    279 kW
  • Highest torque
    502 Nm
    370 lb-ft
  • Lightest
    1,100 kg
    2,425 lb
  • Best power-to-weight
    340 hp/t
    254 kW/t
    2.9 kg/hp
  • Best overall score
    62/100
  • Best performance score
    77/100

BMW Z4 (G29) M40i

  • Fastest top speed
    265 km/h
    165 mph Unrestricted
    250 km/h
    155 mph Restricted
  • Best economy score
    87/100
  • Best practicality score
    32/100

Specification comparison

Specification comparison
ModelBMWZ4 (G29)M40iBristolBullet4.8 V8
Power
340hp254kW
374hp279kW
Torque
500Nm369lb-ft
502Nm370lb-ft
Curb weight
1,535kg3,384lb
1,100kg2,425lb
Gross weight
1,860kg4,101lb
1,250kg2,756lb
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Calculated
249 km/h
155 mph
To 99% top speed
57.6s99% target: 262 km/h / 163 mph
Calculated
37.2s99% target: 247 km/h / 153 mph
Calculated
0-100 km/h
4.5s
3.8s
0-200 km/h
15.2s
Calculated
12.6s
Calculated
0-60 mph
4.3s
Calculated
3.6s
Calculated
Fuel consumption
7.4L/100 km31.8mpg US38.2mpg UK
-
Fuel consumption city
9.2L/100 km25.6mpg US30.7mpg UK
-
Fuel consumption highway
6.3L/100 km37.3mpg US44.8mpg UK
-
Quarter mile
12.6s
Calculated
11.8s
Calculated
Power-to-weight
221hp/t165kW/t100hp/1000 lb
Calculated
340hp/t254kW/t154hp/1000 lb
Calculated
Torque-to-weight
326Nm/t218lb-ft/ton
Calculated
456Nm/t305lb-ft/ton
Calculated
Estimated range
703km437mi
Calculated
-
Displacement
2,998cc183cu in
4,799cc293cu in
Length
4,324mm170in
4,200mm165in
Width
1,864mm73in
1,860mm73in
Height
1,304mm51in
1,200mm47in
Wheelbase
2,470mm97in
2,553mm101in
Front track
1,594mm63in
-
Rear track
1,589mm63in
-
Ground clearance
114mm4in
-
Trunk volume
281L
-
Doors
2
2
Seats
2
2
Fuel tank
52L
55L
CO2 emissions
168g/km
-

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 Z4 (G29) M40iBristol Bullet 4.8 V8PowerTorque
  • BMW Z4 (G29) M40i: Power / Torque
  • Bristol Bullet 4.8 V8: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
BMWZ4 (G29)M40i5,000-6,500 rpm1,600-4,500 rpm6,750 rpm
BristolBullet4.8 V86,300 rpm3,400 rpm6,550 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricBMWZ4 (G29)M40iBristolBullet4.8 V8
Acceleration checkpoints
0-60 mph
0-97 km/h
4.3 s
3.6 s
0-100 km/h
0-62 mph
4.5 s
3.8 s
0-200 km/h
0-124 mph
15.2 s
12.6 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Likely limited
249 km/h
155 mph
Drag race simulation
60 ft
18 m
2.1 s
2.0 s
330 ft
101 m
5.5 s
5.2 s
1/8 mile
201 m
8.2 s
7.7 s
1000 ft
305 m
10.6 s
9.9 s
1/4 mile
402 m
12.6 s
11.8 s
Trap speed
1/4 mile
402 m
184 km/h
114 mph
195 km/h
121 mph

Power comparison

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

Chart data table
VehicleValue
BMWZ4 (G29)M40i
340 hp
254 kW
BristolBullet4.8 V8
374 hp
279 kW

Bristol Bullet 4.8 V8 has 34 hp more than BMW Z4 (G29) M40i.

The biggest power difference is between BMW Z4 (G29) M40i and Bristol Bullet 4.8 V8: 34 hp (25 kW).

Torque comparison

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

Chart data table
VehicleValue
BMWZ4 (G29)M40i
500 Nm
369 lb-ft
BristolBullet4.8 V8
502 Nm
370 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
BMWZ4 (G29)M40i
1,535 kg
3,384 lb
BristolBullet4.8 V8
1,100 kg
2,425 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
BMWZ4 (G29)M40i
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
BristolBullet4.8 V8
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
VehicleValue
BMWZ4 (G29)M40i4.5 s
BristolBullet4.8 V83.8 s

The biggest 0-100 km/h difference is between Bristol Bullet 4.8 V8 and BMW Z4 (G29) M40i: 0.7 s.

Power-to-weight comparison

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

Chart data table
VehicleValue
BMWZ4 (G29)M40i
221 hp/t
165 kW/t
4.5 kg/hp
BristolBullet4.8 V8
340 hp/t
254 kW/t
2.9 kg/hp

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
BMWZ4 (G29)M40i
340 hp
254 kW
4.5 s
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
BristolBullet4.8 V8
374 hp
279 kW
3.8 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.

Chart data table
VehiclePerformance scorePracticality score
BMWZ4 (G29)M40i
Power
340 hp
254 kW
0-100 km/h4.5 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
Doors/seats
2 doors
2 seats
Trunk
281 L
9.9 cu ft
Length
4,324 mm
170.2 in
Height
1,304 mm
51.3 in
BristolBullet4.8 V8
Power
374 hp
279 kW
0-100 km/h3.8 s
Top speed
249 km/h
155 mph
Doors/seats
2 doors
2 seats
Trunk-
Length
4,200 mm
165.4 in
Height
1,200 mm
47.2 in

Detailed score breakdown

Detailed score breakdown
VehicleBMWZ4 (G29)M40iBristolBullet4.8 V8
Power
340 hp
254 kW
374 hp
279 kW
Torque
500 Nm
369 lb-ft
502 Nm
370 lb-ft
Acceleration
4.5 s
3.8 s
Top speed
Unrestricted
265 km/h165 mph
Restricted
250 km/h155 mph
249 km/h
155 mph
Lightness
1,535 kg
3,384 lb
1,100 kg
2,425 lb
Fuel consumption
7.4 L/100 km
31.8 mpg US
38.2 mpg UK
-
Practicality
Doors/seats
2 doors
2 seats
Trunk
281 L
9.9 cu ft
Length
4,324 mm
170.2 in
Height
1,304 mm
51.3 in
Doors/seats
2 doors
2 seats
Trunk-
Length
4,200 mm
165.4 in
Height
1,200 mm
47.2 in
Range score
703 km
437 mi
-
CO2 score
168 g/km
-
Trunk score
281 L
9.9 cu ft
-
Power-to-weight score
221 hp/t
165 kW/t
4.5 kg/hp
340 hp/t
254 kW/t
2.9 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
VehicleBMW Z4 (G29) M40i
Consumption7.4 L/100 km31.8 mpg US38.2 mpg UK
Cost / 100 km12.95 LC100 km
Cost / 100 mi20.84 LC100 mi
Annual fuel used1,110 L293 US gal244 UK gal
Annual fuel cost1,943 LC/year

Head-to-head comparisons

BMW Z4 (G29) M40i

  • Has 16 km/h (10 mph) higher top speed

Pros

  • Highest top speed

Cons

  • Slowest 0-100 km/h
  • Lowest power
  • Heaviest

Bristol Bullet 4.8 V8

  • Has 34 hp more
  • Has 2 Nm more
  • Is 435 kg lighter
  • Is 0.7 s quicker from 0-100 km/h
  • Has 119 hp/t better power-to-weight

Pros

  • Quickest 0-100 km/h in this comparison
  • Most powerful
  • Highest torque
  • Lightest
  • Best power-to-weight ratio

Cons

  • Lowest top speed

Choose cars to compare

Brand
Model
Generation
Engine or modification
BMW Z4 (G29) M40i
Bristol Bullet 4.8 V8
Compare selected cars
2 vehicles selected

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