nah it wouldnt hold anything, and when it would it wouldnt shift where he wanted etc, snow mode just makes it start in 2nd instead of first, power holds it longer, the other thing thats a significant factor in the problems is, when i did the conversion the cima has around 7 different computers under the dash, i removed a bunch of em (traction control etc), so we were thinking it may be throwing a bit of a wobbly about that, its shiftings all over the place really but doesnt bother me, me and the woman have gotten used to its idiosyncrasies etc