A dodge neon is Macpherson strut all around, if I remember correctly. I usually fit the entire setup in the spare tire well because that is where most people want them. I have mounted them off to the side or against the back seat in order to keep the spare tire in its place. either a 1-5 or 2-4 will work perfectly for the car. There are different benifits to each. The cylinders would need to be mounted upside down, and you do not want to run springs. Use accumulators.Check out
www.Tre5Customs.com for a bunch of pics of the setups I have done.