I have Toyo Proxes 4s on my car now, second set in fact. Mine are a 195/50/15, V-rated.

Personally, I really liked them. I got about 35,000 miles of mixed city, highway, autocross, and track driving out of them. They have decent grip, and very progressive breakaway. I should also note that my car is on stock suspension, too.

The only minor complaint that I have about them is that they can be noisy on the highway.

I have no experience with the Dunlop, however.