Get ahold of Joe from Flashwax, he's Always eager to assist!
Cherry Bomb is what i've used on the interior (dash, door panels etc) as well as in the engine compartment. Brown Royal is another product that works really well on getting stuff off the paint, and Especially the rims etc...
I figure for $30.00 plus shipping (if required) is well worth the $ for a starter kit. Or just buy the Cherry Bomb (which isn't in the starter kit) for $3.95 Either way...It's guaranteed !
Again, get with Joe (e-mail him) and discuss what's best for your needs.
I'll say this...Other products MAY (and I stress May) be just as good.???? But why spend more $ if ya don't have to? IMHO!
I really believe you're going to be happy if ya do, I was!!
Respectfully,
~Ray