I8 Roadster vs S5 Sedan
BMW · Audi
1/4 Mile winner
I8 Roadster
Beats the S5 Sedan by 0.11s
The verdict
In a quarter-mile drag race, the I8 Roadster beats the S5 Sedan comfortably, finishing 0.11 seconds ahead. It's tight on paper, but our simulator gives the edge to the I8 Roadster thanks to a slightly better power-to-weight balance.
Spec head-to-head
Power
369 hp
362 hp
0–100 km/h
4.4s
4.5s
Top speed
250 km/h
250 km/h
Engine
ELECTRIC MOTOR
3.0L Turbo V6 MHEV
Fuel
Hybrid
Mild Hybrid
Torque
570 Nm
550 Nm
Price
$165,000
$63,500
Simulated race times
Distance
I8 Roadster
S5 Sedan
100 m
5.511s
5.566s
1/8 mile
8.173s
8.251s
1/4 mile
12.348s
12.456s
1 km
22.372s
22.526s
Acceleration curves
Who should buy which?
Price: S5 Sedan is $63,500 vs $165,000 for the I8 Roadster — a $101,500 gap.
FAQ
Which is faster, the I8 Roadster or the S5 Sedan?
In our simulated 1/4 mile drag race, the I8 Roadster is faster, beating the S5 Sedan by 0.11 seconds.
What is the 0–100 km/h time of the I8 Roadster vs the S5 Sedan?
The I8 Roadster hits 100 km/h in 4.4 seconds, while the S5 Sedan does it in 4.5 seconds.
How much horsepower does each car have?
The I8 Roadster produces 369 hp; the S5 Sedan produces 362 hp.
What are the top speeds?
The I8 Roadster tops out at 250 km/h, and the S5 Sedan reaches 250 km/h.
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