For the last 6 years until a few months ago, I had an 8.5 miles motorcycle/car commute route and a 12 miles bike route to get to work. The bike route was longer due to how narrow and unsafe for bikes the back road I drove on was so I'd add a few miles to be able to ride on the bike path. Driving was a consistent 15 minutes, give or take a minute and always slightly faster on a motorcycle. I only had one traffic light and 4 stop signs as I lived out near the boonies so non-existent traffic. Bike ride was 36 minutes pedaling time, 35 if I was seriously hoofing it. Add a few minutes onto that for waiting for some traffic lights I needed to pass through so total time was around 40.

For 2 months, I moved to a place in the city limits of the nearby small town. The commute by car/motorcycle got longer by 1.5 miles but the travel time jumped to 20 minutes minimum if I was extremely lucky. Usually it was 25 minutes but could creep up close to 30. My bike commute got shorter by 2 miles and pedal time dropped to 30 minutes flat, 33-35 including wait times at traffic lights.
Both of those bike commutes were long enough that I A) Didn't do them more than once a week and B) required dressing like I would for any serious ride so several minutes gearing up and what not.

For the last 2 months, it's been a serious change up. I'm now 3 miles from work regardless of how I get there. I live next to downtown but in the morning, there's surprisingly little traffic, at least on the most direct route to work. Drive time is a consistent 8-ish minutes as the intersections are forgiving and don't have the potential to slow me down much. The bike ride is a very consistent 12 minutes. I only have to cross two traffic lights, 2/3's of the ride is on a bike path and I'm only on a major road for 1 block.
Add in the couple minutes I allow for my cars or motorcycle to warm up and it's almost the same time as biking. Since I'm so close, I don't need to bother seriously gearing up for the ride. I'm just barely starting to get warmed up by the time I get to work so net even particularly sweaty.