The "General" insurance rates?

I am 17 years old and own a 2001 Mitsubishi Eclipse Gt. Right now I am paying around $120 a month for full coverage under my mothers plan with EMC and I have a clean driving record. Either sometime this summer or graduation time next year, I am looking to sell my Eclipse and get a Dodge Neon Srt-4. I have heard that these cars are super crazy to insure. Although I haven't contacted EMC on a quote for me, I have seen General commercials on how its supposed to be cheap. I would have to switch to them and be on my own plan, so does anyone have any advice on the General and do you think it would be cheaper for me to switch to them? I am prepared to spend around $250 a month to $300. Also I am not sure but can I list my mother as the primary driver but I would be listed under her? Is that even legal? I am not too sure if thats what we are doing on our current insurance or not. thanks