bokbok

Anyone know the resonant frequency of a 99 Impreza? It's a base car, not that that should make any difference. I'm asking because frequencies between 4.5 and 5.0 Hz exacerbate disk problems, and my girlfriend's back is messed up.

Thanks in advance!

Flat 4x4

I think it comes down to something rather less technical than that!
- A good supportive seat and a comfortable ride.

If I get back problems, I'll be buying either a Volvo or a Saab
My Audi with sports seats was good, but you really need to isolate the shocks getting through to the passenger / seat.