Purchased 2 Continental tires Countryside Il, 12/10 pending a trip. During trip, 100 mpg less mileage (I have a Hybrid)& have used this car on same trip before. Developed a loud roaring noise over the course of the drive. Because the tires were new, I took the car to the dealer, paid for a diagnostic check to find there was nothing mechanically wrong. Had alignment check at another business, was told noise must be was from shock absorbers. Purchased new shocks. Noise and mileage still an issue, investigated on my own... read full review »