Chubby (pug, 3 years) is completely fine for city drives and anything under half an hour. The moment we hit 35-40 minutes he's pacing the back seat, panting, trying to climb to the front, whining.
We have a trip to Mysore coming up in about a month — 6 hours. Is there a realistic way to fix this in the time we have, and what's the actual method?