Subaru WRX STI performance summary
The 2021 Subaru WRX STI makes 310 hp and 393 Nm of torque. It runs 0-100 km/h in 4.9s, about 4.6s from 0-60 mph, and reaches a listed top speed of 158 mph (255 km/h). In the Carspeed quarter-mile simulation, it covers 402 m in 12.85s.
On Carspeed's data it is brisk — quicker off the line than 73% of the cars in our database, with more power than 57% of them and a higher top speed than 83%. That works out to roughly 135 per horsepower at list price.
Subaru WRX STI photos
Photos: Wikimedia Commons / CC
How the Subaru WRX STI ranks against 1,472 cars
Subaru WRX STI vs its closest rivals
| Car | HP | 0–100 | Top speed | 1/4 mi |
|---|---|---|---|---|
| Subaru WRX STI | 310 | 4.9s | 255 km/h | 12.85s |
| Audi SQ3 | 296 | 4.9s | 250 km/h | 12.87s |
| Cadillac CT4-V | 325 | 4.9s | 260 km/h | 12.83s |
| Audi S3 Sedan | 306 | 4.8s | 250 km/h | 12.77s |
| BMW M135I Xdrive | 302 | 4.8s | 250 km/h | 12.77s |
| Mercedes-Benz AMG CLA 35 | 302 | 4.8s | 250 km/h | 12.77s |
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Subaru WRX STI FAQ
What is the Subaru WRX STI 0-60 mph time?
The Subaru WRX STI does 0-60 mph in about 4.6s, based on its 4.9s 0-100 km/h figure.
What is the top speed of the Subaru WRX STI?
The listed top speed is 158 mph, or 255 km/h.
How much horsepower does the Subaru WRX STI have?
The Subaru WRX STI is listed at 310 hp with 393 Nm of torque.
What is the Subaru WRX STI quarter-mile time?
Carspeed estimates the Subaru WRX STI quarter-mile at 12.85s over 402 m using its published performance data.
What cars are similar to the Subaru WRX STI?
Similar performance rivals include Audi SQ3, Cadillac CT4-V, Audi S3 Sedan.