Official groundbreaking ceremonies were held on a cold, windy day back on April 26, 2005. At that point, Miller announced additions and design changes had jumped cost to around $40 million.

"But, what we learned was that there was such a huge void in the quality of tracks in this area, and I'm not talking just here in Utah or just out West, but in the entire country. One thing led to another and now what we have is a track that has caught the imagination of the racing community, both for auto sports and motorcycles," explained Miller.

"What pleases me most is that once these riders and drivers have been on the track, we've gotten rave reviews. They go on and on about just how good this track is, and these comments are coming from people who've driven other track and are qualified to compare different tracks."

At first, Miller wanted to improve a small track he shared in Colorado, but zoning regulations squelched those plans. He then looked at building a track in Salt Lake County, but environmental issues stopped planning. He next went looking for land in Tooele County, got zoning and environmental OKs and turned planning over to Wilson. "I told a group of close friends when this all started out that I was just going to build a track and then go out and drive until we're silly ... That was three years ago," Miller said during the groundbreaking.

"I have to say that more than anything else, this racetrack is just for fun."

Miller has, in fact, driven the track and "fun" was not one of the words he used to describe his run.

"I haven't been out in one of the really fast cars. I've driven one of the school Mustangs, but it was enough to give me a good feeling for the track. I haven't taken one of the Cobras out. When you have that much power, the track has to be warmer. The Mustang did well, but the Cobra wouldn't have done well.

"It's a monster," he said of his lap. "When you go the whole 4.5 miles you've really got to concentrate. Each part of the track is different. Each part has its own personality. You've got to set up early. There's no place where you can relax. You've got to stay focused the whole time."

All this is as Wilson intended: one track, four personalities, no forgiveness, always challenging, never without some surprises and requiring absolute concentration.

"The objective was to design two separate tracks with two separate identities, but in reality there are four separate layouts, each having different characteristics," he explained.

• The East track (2.24 miles) is tighter, more suited for European riders and drivers. It's busy and very intense. After 10 minutes on the track, competitors will be hyper because everything happens so quickly.