We have a Prenup ..qe keep everything separate but we buyed 2 cars in my marriage Do I have rigths over the cars ??

Whether or not you would get alimony depends on the terms of the prenuptial agreement.  If you have only been married a short time (two years) you would normally get only a very limited amount of alimony if any.  If the prenuptial agreement indicates that there would be no alimony, then you will get no alimony.  Usually a prenuptial agreement addresses the assets that each party brings to the marriage, not assets that are acquired after the marriage.  If you purchased two vehicles in both names after marriage, those vehicles are not covered by the prenuptial agreement.