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it’s a cliche topic there’s always debates to determine the difference. I’m aware that diesel cars have higher torque figure than a petrol so does that mean the diesel car has stronger mid range acceleration from speeds between 30mph-60mph and are quicker to overtake than petrol. Is horsepower a measurement of combination of acceleration and top speed, is that correct? I notice petrols are faster at higher speeds at higher Revv range . For instance I drove 1.0 Audi A3 1.0 tfsi and bmw 1 series 116d 1.5 in the past on Motabilty both have 116bhp I clearly noticed the bmw 116d is stronger for overtaking, mid acceleration and it needs lesss gear changes.