which car company uses best suspension?
Fundamentally impossible to say. As each car they market uses a different suspension system. Obviously you can't really compare the suspension from an MB Geländewagen to the suspension in an Audi R8. You'll have be much more specific in your question.
Lotus and Porsche make the best handling cars. Mazda makes the best handling affordable cars.
they are all stellar systems, if you want to modify any of them, you will lose something in the process, as well as void the warrantee
Jon's answer is 100% correctespecially if the tire is a radialRADIAL M/C TIRES CAN NOT, REPEAT, RADIAL M/C TIRES CAN NOT BE PLUGGED OR PATCHED!!!! Replacement is the only 100% safe way to fix your problem, do not risk your life for the cost of a tire. EDITI did forget to mention this.IF your tire is a standard BIAS PLY tire, menaing NOT A RADIALyou can get away with having an inner tube installed, however, since it is a sportbike, if you are an agressive rider, a tube is not a good idea, and you would be better off replacing the tire, if you're riding style is slower and more laid back, a tube is a good option.
You can plug it on the road to get you home, but the better fix is to patch it from the inside. One time I was riding up by Spotted Horse on US14 (where Peter Fonda once laid down his Fat Boy to avoid hitting a deer) and my buddy got a rock cut in his Avon Gripster. We had some red rope plugs; it took two of them side-by-side to plug the hole. The repair held for 750 miles until we got home. Then he replaced the tire.