You getting in expensive area now from my experience. Falken RT 215, Bridgestone RE55 and Toyo Proxies are semi comp tyres which generally have a stiffer sidewall by reducing tyre pressure to 18 psi you can manage consistant 60 ft in the 1.8s. You can get them in range of 17 and 18 inch tyres locally. Street legal DR you are mainly talking about BFGoodrich and Nitto 555r both of these can get you into the 1.5 s 60ft zone but dont think you will get along life from them. I crucified a set of bf goodrichs 265/18 only got 20 runs from them. Mind you they really hook. Mickey T is about to release a similiar product they are already available but only up to 16 at the moment. I had to import my own tyres nobody really brings in the BFG or the Nitto, however Tempe Tyres has told me he will bring in the Nitto555r if you order them. Personally how seroius do you want to be I ended up running slicks and frontrunners on drag rims oh so light. I stuck with 18 inchrims so I can street drive on either Azenis or BFG