Dragonlord,
As I stated in my subject I am far from being an instructor but I have driven the cars and flown the planes and believe me they are different.
I am currently into planes and loving every bit of it. Listen to these guys when they tell you cars and planes are different because they are, an instructor is highly recommended. I don't really know how long it took me to solo but I do remember how much fuel I went through during the process and that was a gallon and a half. If you can afford a flight sim they are of some help getting you oriented with the controls and such.
The radios differ as well. I am sure you are used to a pistol grip transmitter in which the planes use the double stick and offer much more channels then the car transmitter does.
One more thing that I would like to point out is that you will most likely be getting into larger engines as time goes by in which also don't require the high maintenance that you are accustomed to on the smaller engines in cars due to the pounding the ground does on them. Don't get me wrong the engines on planes do require maintenance just not as much as the cars do thus meaning more flight time
My plane of choice would be the Avistar as it offers a semi symmetrical wing; a good instructor will most likely want to go over all controls and ground checks on your plane first. You will be trained how to approach your plane when starting "hand grabs and such" (A hand through the prop can be very discomforting) A range check is highly recommended as well.
Well that’s just off the top of my head if I think of anymore I will post it here for you.
Blackie