The trips - valued at $6000 apiece - are not just to go to the meeting to watch either. Included, as part of an agreement with top US team, Team Aluminos, is a kart to drive and a fully paid entry to the event.
The annual SuperNationals event in Las Vegas, at which over 600 entries are expected, is considered to be the world's biggest kart race meeting. The Kiwi link was forged when members of the Formula S KartSport club paid their own way in 2007. Since then NZ drivers such as Auckland-based international Daniel Bray have become regulars at the converted downtown hotel carpark track.
Defending KZ2 champion Ryan Grant continues to lead the series, although Matthew Hamilton claimed his debut series class round win at the last round at Tokoroa and is now just 19 points back in second place in the points standings.
"It's pretty tight at the top but I've got a bit of a points lead so it's not too bad," said Grant. "Having the chance of going to Las Vegas puts a bit of a spin on the last two rounds but I'm not thinking about that.
"I'm only concentrating on what's coming up now - the race this weekend. I'll deal with the whole thing about drawing the names out of a hat later, which means there's no point worrying about it now.
"To me it's more important to be first so I'll be concentrating on that this weekend. To that end I've got rid of the new kart and gone back to old faithful. The new kart just didn't work. We thought it would but it needs more heat and grip to work properly, which we just don't have here.
"We're just going to move on and progress with what we know."
Young teammate Scott Manson has had an impressive series debut, qualifying quickest, winning the first heat and going on to finish fourth behind Hamilton, Graeme Smyth and Grant at Tokoroa in May.
It's just as close in the main senior support class, KZ2 Masters, despite Snow Mooney claiming his second round of the season at Tokoroa, in this case from fellow Aucklander Mark Lane and last year's class title holder Tom Curran.
Also having a hit out this weekend at the same track are the combatants in the 2013 YOGG Rotax Max Challenge where Daniel Kinsman and Dylan Drysdale are the points leaders in the 125cc Rotax Max and Junior Max categories respectively. However, in each case it's by just one point.
It's very much a family affair in the Lights class with Daniel's older brother Mathew second and long-time category rival Daniel Connor five points further back after his breakthrough series win at Tokoroa in May.
Connor who, like Daniel Kinsman, is also competing in Australia's Rotax Pro Tour series, was the big mover at Tokoroa, qualifying quickest and winning both Lights class heats as well as the Pre-Final and Final. The latter from Mathew Kinsman and youngsters Reid Harker, Rhys Tinney and CJ Sinclair with Daniel Kinsman an uncharacteristic eighth.
Meanwhile, despite missing the opening round of this year's Challenge series, Aarron Cunningham now leads the standings in the 125cc Rotax Max Heavy class by nine points, with early season pace-setter Brendon Hart and Stuart Marshall locked in a battle for second.
Standings
Formula S KartSport ProKart Series KZ2
1. Ryan Grant 441
2. Matthew Hamilton 422
3. Chris Cox 414
4=. Jordan Morris 398
4=. Shaun Grocock 398
6. Mitch Brown 395
YOGG Rotax Max Challenge of New Zealand 125cc Rotax Max Light
1. Daniel Kinsman 255
2. Mathew Kinsman 254
3. Daniel Connor 249
