Originally posted by vladimirjp https://alliedplayaz.com/alliedplayaz/gt3/initial.html a good tut on modeling a car with (the Porshe)NURBS. modeling a car in NURBS is not patch modeling. Hi, The term "patch modeling" means Nurbs to me. You deal in 4 sided Nurbs patches. I don't know what else it could refer to. sj