Question about Hobbytech Buggy Spirit NXT GP 2.0 Nitro Red, RTR, 1:8

The Hobbytech Buggy Spirit NXT GP 2.0 Nitro is equipped with a 3.5 cm³ nitro engine (HT .21).
The performance of such engines is not usually specified directly in horsepower, but rather in revolutions per minute (rpm) or general performance descriptions such as "high performance".
For a 3.5 cc nitro engine in a 1:8 buggy, the power output is typically in the range of around 2 to 3 hp, depending on the tuning, the fuel (16-25% nitromethane) and other factors such as the exhaust system.