I ran r888's on a couple of track days and was impressed,on the limit gave plenty of dependable feedback though the wheel on understeer & oversteer limit. However most semi's used as road tyres have limitations like cost,fast wearing, noisy, tramline badly in some cases & can be a handful for the unwary on a wet greasy road. Having said that found the positivies outway the negatives for me when taken into account when driving a performance car.

Fantastic semi slicks. On any dry roads once warmed up these grip beautifully. Not too expensive given the quality of the compound. Very hard to lose traction.

Negatives are they tramrail and sketchy in the wet plus have a short longevity, although this is common amongst all semi slicks. Highly recommended for spirited driving.

I use these on my Porsche Boxster, I also won the club championship with them. In medium compound they are a tyre you can use for a whole season of motorsport (12 months) as they can stand many heat cycles. I have used them on the road, 4 lap sprints, motorkhanas, gymkhanas, hillclimbs, and 20 minute sessions at Mount Panorama. They are excellent in the wet provided there is no standing water. They must be run at the correct pressures. Run these tyres if long life and value for money is your main concern.
Longevity, Value, True R compound performance
Noisy, Toyo customer relations are poor.