I have a Lookout one like this.....
Pet Console Car Seat for Small Dogs It sits on my center console so she can look out and still be tethered in. Tatum LOVES it! I had an accident with my 8 week old toy poodle in the car with me about 22 years ago or so. Rolled the car about 5 times. The cause.... Dax running back and forth on the seat and in my lap. Very scary. Non-dog lover people sometimes think it's silly when they see it but I usually have them convinced very quickly. I highly recommend car seats for all pet owners. Even big dogs can (and should) be tethered to a seat belt.