Reply to thread

Message: <blockquote data-quote="SpeedBuster" data-source="post: 624395" data-attributes="member: 27641">Acceleration is mainly depending on torque, but once a certain speed is reached thats when horsepower comes into play as well. And horsepower will determine the top speed of the car. So in between it is a combination of both. Diesel cars have higher torque but relatively lower hp (due to the low red line, usually below 5000rpm), and hence it has good acceleration but the top speed is generally lower than a petrol car of similar cubic capacity (320d = 235km/hr, 328 = 250km/hr) For the F30, the 320i is probably detuned as it is capable of pushing a lot more hp from a 2.0 turbo engine. It is probably done so by BMW to have a clear product differentiation, otherwise no one will be keen on the 328<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile    :)" loading="lazy" data-shortname=":)" />The top speed between the 320d and 320i is similar (235km/hr as quoted in BMW site) as both the cars are producing similar horsepower (184hp versus 181hp).</blockquote>