I ditched the car for commuting a long time ago.
This time of year my usual ride is a Whyte Suffolk road bike when I cycle all the way to/from work.
If I do wimp out of the full ride, I will cycle to the rail station (about 2miles away) on one of these
http://www.pedelecs.co.uk/forum/threads/elephant-bikes.21325/
Intially, had planned to convert the Elephant Bike but came to the conclusion that it would be the bike less likely to be stolen if left at the rail station.
I reckon any thieves are more likely to try and steal one of the more conventional/expensive looking bikes, especially those that seem to be secured by a bit of string.
Plus if it were stolen, I wouldn't be as upset as if I lost my more expensive road bike.
I came down with some kind of viral Bronchitis infection begining of Sept, which has lasted for weeks and dragged down my fitness level quite a way.
So I resurrected the e-bike concept and converted an old folder I had, and the intention is to use it as part of my training plan to get back to full fitness.
Comparing the time/average speed of the E-Bike commute, it came out slightly worse versus my summer road bike commutes which were done at full fitness.
(Just to be clear, I'm not a racing bike fitness freak, being overweight and on wrong side of 60, I also don't like cycling far if its chucking down with rain).
The road bike can be lot faster but where the e-bike scores is that it effectively raises my average road speed in that hills are easier to tackle.
I was quite pleased with the ebike results though, as I've been struggling a bit on the road bike as I recover. I plan to use the ebike on a recovery day.
I will probably still use it once back to full fitness, as I find it great fun to ride. Plus equipped with panniers I find I can carry my average weekly shop from Tesco (4.5 miles away) and still hack back and forth in a reasonable time. ie: before the ice cream melts!