musher51
Been here awhile...
All I can say re pseudo-manual is to try it. It worked for me a few times in 1-3 inch snow (starting in 2nd). As a 27 month lessor, I have no intention of buying a second set of tires, and something keeps those 8 versions of BMW and Mercs driving all winter here. I'm a heck of a lot less worried than I was pre-experience. YMMV of course, but so far I wouldn't hesitate to recommend the 4.6 to anyone in the snow belt as long as they exercise restraint and don't overdrive the car.
I had a chance to try using the sorta-manual shifter last night. Rush hour traffic was crawling due to five fresh inches of snow, and I ended up stopped on a cloverleaf ramp with a steep incline. Things were so slick due to the new snow, heavy traffic, exhaust-based ice, etc., that at one point, it appeared that I couldn't get started from a dead stop. Just when I thought I was about to meet three or four of the drivers right behind me (to get a push), I upshifted with the steptronic option (or whatever it's called) and I was able to make my way up the hill.
All in all, I've driven about 400 miles in 3" - 5" of snow in the past week, and I have no complaints or concerns about the Genesis' ability to handle winter driving (provided that I don't have to stop often on an incline!). At various points last night, I was comfortable cruising 10 - 15 MPH faster than the various FWD and AWD vehicles on the freeway, tracking straight and true through several inches of snow.
Wow, no snow tires for you, BTHBC? To be fair, I didn't even give the stock Dunlops a chance on snow (they were "convicted and sentenced" based solely on negative reviews on tirerack.com), but given my experience using performance summer rubber on snow with previous RWD cars I've owned, I'm convinced that good snow tires are well worth the investment, particularly since I drive ~10K miles/year in those conditions. But I envy you the cost savings...
PS I did have a few hairy moments with the wiper's ability to keep the windshield cleared, but I think I'll tee that up in a separate post.