do you have a particular modeling style you'd like to learn with?
I'd recommend poly modeling a base mesh, and using a turbosmooth on top of that.
There are a great number of tutorials out there that show fairly decent poly modeling tutorials...
raz.ro has a vehicle tutorial there that is somewhat simple for beginners to start getting some modeling ideas off of. Might want to check that out...
Another tutorial that appears to follow methods similar to the ones I use is
{E}vermotion - 3D models, textures, tutorials, architecture, 3D graphic, vray, 3ds max .. it seems fairly decent of a tutorial...
That being said, it's very unlikely to find tutorials that exactly match the car you want to model.... so you'll have a bit of trial and error to go through when mentally converting these tutorials into something that'll actually work for you.
Good luck with your modeling, and have fun!