A Range of Problems

[rsx racer]

Both my Evo Truck and Evo Car are experiencing range problems. I only get a little more than 10 feet for both. I tried changing the controllers and this seemed to help my Truck, but the car is giving me the same problems. I highly doubt I blew something because I checked the board for any discoloration, and haven't found anything. Suggestions for improved range?

Also, where would you recommend to purchase a plastic antennae which won't cause a short if in contact with the motor or batteries? I don't want to possibly mess my board up during a fun run.

Futhermore, both cars seem to love steering to the left. I know this was an easy fix for Gen 1, but is there a tutorial for the evo (centering the servo manually)? I hate having to adjust my trim every single time I power up (it seems as if the car and the controller won't remember the settings).

Lastly, both of my Evos are equipped with Li-Polys. Now, the truck handles like a beast, best upgrade yet. The car however, doesn't seem to be having much fun; everything is very tight, not as loose and smooth as the truck. The Evo car was second hand off ebay, and this is my first Evo car chassis. Is it common for a similar spec'd Evo truck to outrun an Evo car?
Thanks to anyone who replies