Auto-Scaling RPM and Speed Tachometer

It would be nice if the rpm gauge and the speed tachometer would scale depending on the car. Currently it makes "normal" cars seem super slow and rev lazy IMO.
A tycoon game made for people who live and breathe cars.
http://phpbb3.automationgame.com/
Sillyworld wrote:While we are at it... How about a maximum speed reached in a test track metric? that will be asking too much?