(CNN) - As he considers another run for the White House, Vice President Joe Biden laid out one reason why he wouldn't want to be the nation's next chief executive.
"Everybody wants to know whether or not I'm going to run for president. There's a lot of reasons to run for president, but there's one overwhelming reason not to run for president," he said. "I'd like to get that (Corvette) Z06 from zero to 60 in 3.4 seconds."
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His comments came at a conference in Washington for the United Automobile, Aerospace and Agricultural Implement Workers of America, better known as the UAW.
"3.4 seconds!" he added, as the audience laughed.
A self-described "car junkie" whose father was a car salesman, the Vice President was loose and in his element Wednesday as he fired up the labor crowd, a friendly audience to the longtime labor ally who frequently talks about his roots in blue-collar Scranton, Pennsylvania.
"It's good to be home, and you guys are home for me," he said as he took the podium.
The Vice President said he was talking to the chairman of General Motors and expressed his longing to "drive this sucker," referring to the recently unveiled Z06.
The potential 2016 contender joked the only place he'd be allowed to drive it is on a test track with the Secret Service.
Because of security concerns, Biden isn't allowed to drive himself anymore.
However, he told a crowd last month at the North American International Auto Show in Detroit that he did a 60-foot burnout with his 1967 Corvette Stingray down his driveway in Delaware last year, with a Secret Service agent in the passenger seat.
His comments Wednesday come after another potential 2016 Democratic candidate, former Secretary of State Hillary Clinton, admitted last week she hadn't driven a car since 1996.
Biden also thanked the union for supporting him throughout the years, and argued they have to be "vigilant and unrelenting" in fighting to protect collective bargaining rights.
"You've never left me, and I've never left you," he said. The Obama administration accelerated the auto bailout that saved thousands of jobs, including those of UAW members, at U.S. auto companies.
Biden also said organized labor was crucial to maintaining and building the middle class, thus keeping the American Dream alive.
"No matter what neighborhood you're from, you were taught by your parents in this country, you could be anything you want to be, anything at all, if you work hard. 'Just give me a chance, don't give me a hand up, give me a chance'."
Some of his rhetoric could spark more speculation of Biden's interest in another White House bid, a possibility he hasn't ruled out.
"I was raised in a house where my mother and father, who never went to college, said I can be anything I want, including vice president or president of the United States," he said to big applause.
CNN's Greg Clary contributed to this report.