Porsche has finally redesigned its Cayenne SUV, and we discuss our overall impressions, and how it performed in our tests. Wet weather can have a significant impact on how tires perform, and the problem only gets worse as a tire ages. CR recently conducted a test on how tires with low tread depth handled in our wet braking and hydroplaning courses, and why a tire from Michelin impressed us. We also answer audience questions about the 2019 Toyota RAV4, how long it takes us to fully test a vehicle, and whether changing a new car’s tires and shocks is a good idea. SHOW NOTES ----------------------------------- :45 - worn tire testing in wet conditions & Michelin claim check   7:21 - winter tire care tips   10:01 - Porsche Cayenne Road Test results   16:24 - audience question #1: replacing brakes and shocks   20:06 - audience question #2: duration of CR’s auto testing protocol   23:33 - audience question #3: replacement for 2010 Toyota RAV4? ----------------------------------- Subscribe to Talking Cars on Apple Podcasts!   Video version: https://itunes.apple.com/us/podcast/talking-cars-hq/id630839767?mt=2   Audio version: https://itunes.apple.com/us/podcast/talking-cars-mp3/id630831189?mt=2   Have a question for our experts? Leave a comment on this episode, or reach out to us directly!   From your iOS device, iMessage us at TalkingCars@icloud.com to send a photo, video, or text directly to the Talking Cars team!   We love to feature our viewers on the show, so submit video questions at https://www.consumerreports.org/cars-talking-cars/   Subscribe to Talking Cars on Spotify: https://open.spotify.com/show/4Jr8wJRJyN9v8T6LC1fQQ6