id stick with exterior, suspension and rims. good paint job, lip kit. and a clean interior. if you want to make it look nice you should already know what your looking for. get the creative part out of you. so the the car looks the way you want it. its self explanitory what youll need to make the car nice. but ill give you a little pointer. swap your antenna with an antenna from a honda s2k. it looks better on the the 240 anyway.I have a black 180sx type x which i want to look very clean and sexy rather than tough and mean. What modifications would you make to the exterior and the interior? Not performance mods.