LAKE PLACID, N.Y. -- U.S. bobsled star Steven Holcomb finally has something to smile about -- a brand-new, four-man sled with lots of carbon fiber, state-of-the-art suspension, and updated steering, all compliments of former NASCAR star Geoff Bodine, ace designer Bob Cuneo, and North Carolina-based race car builder Jim Garde.Just like its predecessor, Night Train-2 is black -- and it's fast."So far, so good out of the box. A lot of potential. I think we're onto something good," Holcomb, the reigning Olympic champion in four-man, said after four days of testing last week on his home track at Mount Van Hoevenberg. "I'm looking forward to tweaking it and making it faster. The down time was the same as World Cup training. It's exciting to see."