Car comparison

Ariel Atom 4 2.0vsBMW Z4 (G29 LCI) · Facelift 2022 M40i

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

New comparison

Ariel Atom 4

2.0

320 hp1996 ccGasolineRWDManualTurbochargedRoadster2018-present
VS

BMW Z4 (G29 LCI) · Facelift 2022

M40i

340 hp2998 ccGasolineRWDAutomaticTurbochargedRoadster2022-2026

Comparison overview

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

Best choices

Ariel Atom 4 2.0

  • Quickest 0-100 km/h
    2.8 s
  • Fastest top speed
    280 km/h
    174 mph Unrestricted
    260 km/h
    162 mph Restricted
  • Lightest
    595 kg
    1,312 lb
  • Best power-to-weight
    538 hp/t
    401 kW/t
    1.9 kg/hp
  • Best overall score
    62/100
  • Best performance score
    79/100

Specification comparison

Specification comparison
ModelArielAtom 42.0BMWZ4 (G29 LCI)Facelift 2022M40i
Power
320hp239kW
340hp254kW
Torque
420Nm310lb-ft
500Nm369lb-ft
Curb weight
595kg1,312lb
1,565kg3,450lb
Gross weight-
1,860kg4,101lb
Top speed
Unrestricted
280 km/h174 mph
Restricted
260 km/h162 mph
Calculated
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
Calculated
To 99% top speed
30.7s99% target: 277 km/h / 172 mph
Calculated
59.6s99% target: 267 km/h / 166 mph
Calculated
0-100 km/h
2.8s
4.5s
0-200 km/h
8.1s
Calculated
15.0s
Calculated
0-60 mph
2.7s
Calculated
4.3s
Calculated
Fuel consumption-
8.1L/100 km29mpg US34.9mpg UK
Quarter mile
10.3s
Calculated
12.6s
Calculated
Power-to-weight
538hp/t401kW/t244hp/1000 lb
Calculated
217hp/t162kW/t99hp/1000 lb
Calculated
Torque-to-weight
706Nm/t472lb-ft/ton
Calculated
319Nm/t214lb-ft/ton
Calculated
Estimated range-
642km399mi
Calculated
Displacement
1,996cc122cu in
2,998cc183cu in
Length
3,520mm139in
4,324mm170in
Width
1,880mm74in
1,864mm73in
Height
1,122mm44in
1,304mm51in
Wheelbase
2,390mm94in
2,470mm97in
Front track
1,600mm63in
1,594mm63in
Rear track
1,615mm64in
1,589mm63in
Ground clearance-
114mm4in
Trunk volume-
281L
Doors-
2
Seats
2
2
Fuel tank
40L
52L

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.

Ariel Atom 4 2.0BMW Z4 (G29 LCI) Facelift 2022 M40iPowerTorque
  • Ariel Atom 4 2.0: Power / Torque
  • BMW Z4 (G29 LCI) Facelift 2022 M40i: Power / Torque
Dyno simulation data table
VehiclePeak power RPMPeak torque RPMMax engine speed
ArielAtom 42.06,500 rpm3,000 rpm6,750 rpm
BMWZ4 (G29 LCI)Facelift 2022M40i5,000-6,500 rpm1,600-4,500 rpm6,750 rpm

Acceleration curve

Estimated speed over time for selected vehicles.

Acceleration and drag-race table
MetricArielAtom 42.0BMWZ4 (G29 LCI)Facelift 2022M40i
Acceleration checkpoints
0-60 mph
0-97 km/h
2.7 s
4.3 s
0-100 km/h
0-62 mph
2.8 s
4.5 s
0-200 km/h
0-124 mph
8.1 s
15.0 s
Top speed
Unrestricted
280 km/h174 mph
Restricted
260 km/h162 mph
Likely limited
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
Limited
Drag race simulation
60 ft
18 m
1.8 s
2.1 s
330 ft
101 m
4.5 s
5.5 s
1/8 mile
201 m
6.7 s
8.2 s
1000 ft
305 m
8.7 s
10.6 s
1/4 mile
402 m
10.3 s
12.6 s
Trap speed
1/4 mile
402 m
222 km/h
138 mph
185 km/h
115 mph

Power comparison

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

Chart data table
VehicleValue
ArielAtom 42.0
320 hp
239 kW
BMWZ4 (G29 LCI)Facelift 2022M40i
340 hp
254 kW

BMW Z4 (G29 LCI) Facelift 2022 M40i has 20 hp more than Ariel Atom 4 2.0.

The biggest power difference is between Ariel Atom 4 2.0 and BMW Z4 (G29 LCI) Facelift 2022 M40i: 20 hp (15 kW).

Torque comparison

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

Chart data table
VehicleValue
ArielAtom 42.0
420 Nm
310 lb-ft
BMWZ4 (G29 LCI)Facelift 2022M40i
500 Nm
369 lb-ft

Curb weight comparison

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

Chart data table
VehicleValue
ArielAtom 42.0
595 kg
1,312 lb
BMWZ4 (G29 LCI)Facelift 2022M40i
1,565 kg
3,450 lb

Top speed without limiter comparison

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

Chart data table
VehicleValue
ArielAtom 42.0
Unrestricted
280 km/h174 mph
Restricted
260 km/h162 mph
BMWZ4 (G29 LCI)Facelift 2022M40i
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph

0-100 km/h comparison

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

Chart data table
VehicleValue
ArielAtom 42.02.8 s
BMWZ4 (G29 LCI)Facelift 2022M40i4.5 s

Although BMW Z4 (G29 LCI) Facelift 2022 M40i has more power, Ariel Atom 4 2.0 is quicker from 0-100 km/h.

The biggest 0-100 km/h difference is between Ariel Atom 4 2.0 and BMW Z4 (G29 LCI) Facelift 2022 M40i: 1.7 s.

Power-to-weight comparison

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

Chart data table
VehicleValue
ArielAtom 42.0
538 hp/t
401 kW/t
1.9 kg/hp
BMWZ4 (G29 LCI)Facelift 2022M40i
217 hp/t
162 kW/t
4.6 kg/hp

Performance spider chart

Radar chart comparing normalized performance and fuel-consumption scores.

Chart data table
VehiclePowerAccelerationTop speed
ArielAtom 42.0
320 hp
239 kW
2.8 s
Unrestricted
280 km/h174 mph
Restricted
260 km/h162 mph
BMWZ4 (G29 LCI)Facelift 2022M40i
340 hp
254 kW
4.5 s
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 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
ArielAtom 42.0
Power
320 hp
239 kW
0-100 km/h2.8 s
Top speed
Unrestricted
280 km/h174 mph
Restricted
260 km/h162 mph
Doors/seats2 seats
Trunk-
Length
3,520 mm
138.6 in
Height
1,122 mm
44.2 in
BMWZ4 (G29 LCI)Facelift 2022M40i
Power
340 hp
254 kW
0-100 km/h4.5 s
Top speed
Unrestricted
270 km/h168 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

Detailed score breakdown

Detailed score breakdown
VehicleArielAtom 42.0BMWZ4 (G29 LCI)Facelift 2022M40i
Power
320 hp
239 kW
340 hp
254 kW
Torque
420 Nm
310 lb-ft
500 Nm
369 lb-ft
Acceleration
2.8 s
4.5 s
Top speed
Unrestricted
280 km/h174 mph
Restricted
260 km/h162 mph
Unrestricted
270 km/h168 mph
Restricted
250 km/h155 mph
Lightness
595 kg
1,312 lb
1,565 kg
3,450 lb
Fuel consumption
-
8.1 L/100 km
29.0 mpg US
34.9 mpg UK
Practicality
Doors/seats2 seats
Trunk-
Length
3,520 mm
138.6 in
Height
1,122 mm
44.2 in
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
Range score
-
642 km
399 mi
Trunk score
-
281 L
9.9 cu ft
Power-to-weight score
538 hp/t
401 kW/t
1.9 kg/hp
217 hp/t
162 kW/t
4.6 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 LCI) Facelift 2022 M40i
Consumption8.1 L/100 km29 mpg US34.9 mpg UK
Cost / 100 km14.17 LC100 km
Cost / 100 mi22.81 LC100 mi
Annual fuel used1,215 L321 US gal267 UK gal
Annual fuel cost2,126 LC/year

Head-to-head comparisons

Ariel Atom 4 2.0

  • Is 970 kg lighter
  • Is 1.7 s quicker from 0-100 km/h
  • Has 10 km/h (6 mph) higher top speed
  • Has 321 hp/t better power-to-weight

Pros

  • Quickest 0-100 km/h in this comparison
  • Highest top speed
  • Lightest
  • Best power-to-weight ratio

Cons

  • Lowest power

Choose cars to compare

Brand
Model
Generation
Engine or modification
Ariel Atom 4 2.0
BMW Z4 (G29 LCI) M40i
Compare selected cars
2 vehicles selected

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