For close racing I reckon nearly all those mentioned above will do the job. It`s just my opinion but I cannot see the fun in racing cars out of class with each other? By keeping them like for like then you will have a ball and Tropi is right and it`s logical, run two Vipers and you`ll be side by side. You don`t always need variety but if you do It`s perhaps a good idea to keep them in the same class, in this case GT types.
