25 miles, mainly motorway: 30 mins, being generous, suspect it’s longer? Assuming no traffic too.
30 miles on the bike: 1:45 without killing yourself, so that’s an additional 1:15, more like 2.5 hours. Worth doing once a week perhaps? Or do one way. Great way to get some good miles in!
I’d be a sweaty ballack if i tried to do it in that time njee. There’s the dozen or so roundabouts and 40+ sets of lights that the detour has over the motorway to consider. I’ll maybe try it some day, but considering i’m averaging 0 miles per week for the last 2-3 months, (due to injury) i’d need to get some training in.