10 Tarmac rallies without a stone chip on my Porsche GT3RS. Winguard applied XPEL PPF on all forward facing surfaces and rear guards before my first rally and it works! This includes 3 Targa Tasmania and 4 Targa High Country.Some stages were on fresh bitumen with gravel surface, where I would approach and pass cars at competition speeds. The stones just bounce of the film without marking the paint. After over four years with 10 tarmac rallies and lots of club track events, I could just peel of the rally decals and sell the car as it was.Winguard have applied XPEL PPF to my current Cayman S, used for club sprints and Cayenne Diesel which sees plenty of off-road use. The cars look in mint condition, despite getting used to the limit.Tim and his team are meticulous in their work and are happy to touch up any minor blemishes that may occur through mishaps.