Bike in the shed, tommy in the car, warm, dry, comfortable, certainly safer, low winter sunshine not so much an issue, no biker gear needed, listening to music, leave home that bit earlier. If it takes 20 mins longer in the car that's what it takes. Arrive at your destination comfortable and screwed up with being frozen or wet, it can also take half that 20 minute difference getting dressed and changed again after bike ride plus securing the bike in the company carpark.
I love my bike (but not in the winter) and that is the reason it stays in the shed well away from salty, shitty, icy roads.