Trick here is your Ps points get refreshed every year x3 year = 12 points in 3 years.
Your opens points only get refreshed every 3 years = 12 points 3 years.
You are going to drive fast in no matter what you get. Its that simple. Just the sports car your more likely to, and faster, and feel more confident going fast.
Dans plan is good, but I still think your going to get picked on. Cops will see skyline, Ps, instantly think its turbo knowing very well you cant have it. They will pull you over, start searching get pissed off they cant find anything, not even a turbo, so they will keep looking to find something small, say wiper rubber too hard, gearknob or something.
Thinking a bit more $8k might even get you an echo or something, bit safer airbag etc. I mean your more likely to die in those first 3-5 years of driving...
Sorry to go on about this, but I know what I did, and what some others have done, and worked out what I should have done. Which wasnt what I did do...