road trip Phuket to Chiang Mai with Mint

Mint and me drive from Phuket to Chiang Mai for 6 day. Long trip, I am tired but she enjoy. French Bulldog is not good for hot car, so we start very early in the morning, 5am, and only stop for coffee and toilet. Mint breathing very loud in the car, I always check she ok. She is 5 year old and not young for this kind of trip. First night we stay in Hua Hin, pet friendly place. Second night in Ratchaburi, the room is very small but ok. The air con was very cold so Mint sleep on the bed the whole night. Planning for the next time: buy car seat for dog, more water, and cooling mat. Also maybe fly next time, but Mint hate the box so no. Road trip is best for us.