I'm guessing your Michelin's are original and now 10 years old, about 4 to 5 years beyond their useful life, so it not surprising your not impressed with grip. At this point almost anything will have more grip.
As JayG said a lot depends on your intended use. Sumitomo HTR ZIII, from experience, are good tires at a great price.
__________________
03 Carrera
02 Boxster S Guards Red, black interior with matching hardtop
89 Carrera 4
89 944 S2
78 911SC
|