Ordered a set of Toyo T1R's yesterday for my fiesta ST, and recieved Toyo Proxes 4's instead. Is there much of a difference between the two?

I was after the T1R's as they had been recommended by numerous people, and I hadn't heard anything about the P4's? Should I just fit the P4's and have done, or wait possibly another week for the T1R's to arrive?

Thanks in advance, Jay.