I do bring chew toys whenever we go in the car, problem is, he's a 4 month old pitbull who's teething! His teeth are sharp as needles! I'm not mad at him at all, and will NEVER send him to the pound.I got bitter taste spray, and it didn't phase him a bit. I tasted it myself (bad idea) and it is the worst thing I have ever tasted! Other than the chewing, which is normal, he's a really well behaved puppy, I just can't wait til he outgrows the chewing phase. He LOVES car rides. He's my little buddy.