I'm looking for a small mobile antenna for the 2m & 70cm bands. If it
could
also cover the 6m band that would be great.I want it to have a PL259
connector to be able to use it with my existing magnet mount. In
addition, I would like it to be quite short (less than 30cm/12in) or
be able to fold it somehow, so that I can park my car (SUV) in the
basement.

Can anyone suggest a specific model?

thanks,
Andreas