I prefer the balance of the T model, but each to his, and for a T model, it's very short, also in real life using it.
There may be situatione, where the C.handle may be in the way of drilling, screwing etc. Again I prefer the T.
Else the new C15 have a built in light, and the usual vertical magnetholder for bits, drills etc, where as the T15 have a seperate lamp which you can turn on and off (from both left and right) as you please. It can also be att. to a headband. So the T does use a tiny bit less power, unless the electronics is changed, to be even more power saving. Don't know.
The C15 is a tiny bit weaker in Nm in comparison to the T15.
The C15 I think have a beltclip, anyway the new T18 will also.
As the C15 have this clip, and you can use the batteries for the new Carvex, you may then have a portable jigsaw with a beltclip, ha ha [big grin]
The T15 comes in a very nice systainer with a room in the lid. Not in all markets, I'm afraid, as mine didn't... [mad] [mad] [mad]
I'm sure some of the more informed people here, may widen this and/or confirm the above.
Just my twopence.
Jacques.