What racing legends think about Tesla, Uber and Google

In 2015, it's still perfectly normal to drive yourself in a fuel-powered car that you actually own. One day though, that concept will sound quaint.

With new technologies like Uber for car sharing, Tesla for electric vehicles and Google's driverless cars, the way in which we drive is rapidly transforming into something completely different. It's very possible in the near future people won't have any relationship with cars at all: not putting gas in them, not driving them, not owning them.

"I'm glad I'm retired if there are going to be driverless cars," said racing legend Mario Andretti in an interview with CNBC at Pocono Raceway, ahead of Sunday's IndyCar race. After taking me around the track for three "hot laps" that scared the hell out of me, Andretti chatted about the future of driving and the sport. "These poor guys are going to be out of a job" in reference to the current crop of racers—including his grandson Marco. "The human element needs to still be involved to have any value at all."

Roger Penske took a more optimistic approach about the changing landscape. "The great thing about Uber is somebody's got to sell them cars. So I'm going to make a knock on their door." In addition to owning top teams in several racing series including NASCAR and IndyCar, Penske has a stake in many auto-related business, including car dealerships (PAG) and truck rental operations.

For all the discussion on truck fleets that might not need drivers, Penske didn't think it would go fully automated. "I think you'll always have someone sitting in the car, but they can do other things ... things that you can't do today." He did say "the safety aspects of driverless cars are important" over the long term.

On the topic of electric vehicles, Penske wasn't as immediately excited. While he did say, "Tesla has done an amazing job," he countered with, "Today it's all about total cost of ownership, and today total cost of ownership doesn't drive electric vehicles." He thought big changes would come soon, "over the next three to four years," and that "it's going to be driven politically ... by people wanting to have less emissions."

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Penske agreed with Andretti that it was better to be closer to the end of their careers than at the beginning. "Well there's 17 million cars sold in the U.S. I won't be around when it goes to probably 10 or 11 million."

Leave it to the young guns to still keep a big investment in traditional autos. "Our car dealerships have been on fire the last couple of years," said Graham Rahal, son of 1986 Indy 500 champion Bobby Rahal.

Graham Rahal, despite his youth, has already been an extremely active buyer and seller of cars for his personal collection. "I'm only 26 and I've had 100 cars. I was like 'whoa,' didn't realize it was that bad. I love it. I'm passionate about it beyond anything else."

If there are more 20-somethings like Rahal, then maybe traditional auto businesses will be fine. But then again, people like him might be just as easily convinced to move on to the next-best technology. "When it comes to cars," said Rahal, "you can't get too attached to them."