Fitted thes to 3.0 BMW Z4 in place of the original Bridgestone RFT (Runflats) - as yet I have not driven the Debica tyres as hard as the Bridgestones (yet!) but I can definitely guarantee that if you make the swop you will be amazed at the difference in roadfeel and the precision that has appeared in the steering - the Z4 now feels nimble and far less scary on wet, cambered, roads. Previously I was having to fight the steering when anywhere near wet, white lines and a long journey was very tiring due to the concentration required. Now the car is a joy to use. N.B. I also have Debica Frigo HP winter tyres fitted to my everyday car - Do not be put off by the unknown name - these tyres are world class.