* Engine power and design: More powerful engines can achieve higher speeds.
* Aerodynamics: A car's shape significantly impacts its ability to overcome air resistance at high speeds.
* Transmission: The gearing system influences the car's speed range.
* Tire design and construction: Tires have speed ratings, and exceeding those ratings is dangerous.
* Weight: Lighter cars generally reach higher top speeds.
* External factors: Weather conditions (wind, etc.) can affect top speed.
While some supercars have top speeds exceeding 250 mph (400 km/h), most production cars have much lower top speeds, often in the range of 100-150 mph (160-240 km/h). There's no universally applicable maximum.
