Potty training with a long commute

So my 2 1/2 year old goes to daycare near my work, about a 40-60 minute drive to and from home, depending on traffic. Her daycare recommends that when she’s ready to start potty training to just wear underwear during the day and pull ups for nap/nighttime. She’s ready for potty training and we’ve been doing great so far, but haven’t had to go anywhere in the car yet. Should I risk just letting her wear underwear for the commute or just put her in a pull up? I just feel like if I put her in pull ups she won’t learn, but I wanted to see what everyone else does that has a long commute like me.