‘A racing tyre tends to be much more peaky’, says Jamie McWhir, Technical Manager at Michelin UK. ‘Imagine a graph with slip angle on the X-axis and grip potential on the Y-axis: a racing ...

CONCORD, N.C. — Goodyear officials were in NASCAR’s Charlotte-area backyard for tire testing Tuesday ... “The Cup cars just have so much more grip than the Xfinity cars do,” said Hill ...