How fast is a 182 cessna?

Fastest I've had my 182 in cruse flight was a ground speed of 160kts which is about 185MPH. However, I've had it in a slight dive of 180kts which is about 205 MPH

70miles

160 knots or 185 miles per hour (max or "never exceed speed") this aircraft is not capable of this speed in level flight. The maximum speed in level flight is around 125 knots.

62 knts

455k/h {263mph}