CLR-GTR

Blueprints indeed serve mainly to model the actual car shown on them. I believe you want to edit a few parts and NOT model the entire thing yourself first, then you should look at finding the meshes (3d models). You could try to find and download such a model and then edit the parts you want to change. Perhaps you can even find a plug-in to import the R34 of TDU1, I know there is a 3ds max plug-in made by Vagos I think for importing TDU cars, I used it several times.

I find polymodelling the best. You make a small plane/polygon and you shift+drag the edges and move the vertices until they match the car's shape. You won't have to use polymodelling for everything, some simple stuff like rearwings are simple enough to make with boxshapes etc. Box modelling is good especially for beginning people, but eventually you'll have to leave it as it won't give as good results and freedom as the other methods. I believe NURBS is quite hard to learn, I never tried it myself. http://www.smcars.net/forums/nissan-datsun-infiniti/9088-nissan-skyline-r34-gt-r-v-spec.html http://www.smcars.net/forums/nissan-datsun-infiniti/5651-nissan-skyline-r34-gt-r-v-spec.html http://www.smcars.net/forums/nissan-datsun-infiniti/4415-nissan-skyline-r34-gt-r-v-spec.html These 3 topics have blueprints of that R34 V-spec. They are attachments though, if you're not a member I believe you can't see them. If you need them I can send them to you.

You can make it as difficult as you want. My Merc is difficult in the way that it has much detail, and I often make stuff (both 2D as 3D) from scratch, like the warning decal for the radiator fan, or all the icons of the buttons inside the car that have to light up in dark scenes. If you start with a car I'd first say to do one with a rather simple design, and forget about the interior, you can make interiors later on. Be sure that you look closely how to set up blueprints if you try to model an existing car. Blueprints are known to sometimes not allign correctly with each other. Other than this, well, there are lots of ways to make a car. Boxmodelling, NURBS, polymodelling... Just try some out, search some tutorials, and don't throw it away if it doesn't work. Modelling takes time and eventually you'll have to redo some stuff, but the result will be worth it.