I switched from public transport to motorbike commute some four years ago - every day, all weather, mostly motorway commute. Plenty of filtering, especially as I get closer to Dublin. My office had no parking, so it was either public transport or expensive multi story car park if you were to drive in. I could park the motorbike right outside on the footpath, so I was really onto a winner there.
However, we moved office location further away, and now my commute is mostly motorway, and there is underground parking, and to step off the car to the lift to my desk would be all in less than 100 steps / 2 minutes, compared to walking in dripping, pealing off layers of wet bike gear, trying to dry whatever water got in, and spending rest of the day with a damp crouch... it's seriously tempting to take the car to work.
I am still sticking with the bike though. Car aggravates my bad back and of course it's less fun.