LeBron James has quite the bone to pick with a California car company ... publicly admonishing the joint for "lying" about hooking him up with a new set of wheels.
The Effortless Motors dealership in Riverside shared a clip of a new Bugatti being driven into the back of a truck on Wednesday ... featuring a caption claiming the Lakers superstar was its "biggest VIP customer" and congratulating him for "trusting" its business.
James himself eventually got wind of the post ... and was quick to call BS on the whole thing on Instagram.
"Stop the [cap]!!" Bron said on Friday. "LIARS!! I don't know y'all and I don't even have that car. CLOUT CHASERS."
A ton of James' fans then went to the business' profile and flooded it with hate comments ... echoing the four-time champion's words and bashing it for using his name for its benefit.
Here's the thing -- TMZ Sports spoke with Effortless Motors owner Daniel Ubario ... and he admitted it was all just a marketing ploy ... and he honestly didn't expect the post to blow up like it did.
On top of that, Ubario said he's never worked with LeBron in any capacity in the past -- let alone this car in particular.
He also told us he personally reached out to apologize to James over the matter ... but so far, he hasn't gotten a response.
While it might have given the company some more eyeballs, there's a chance it doesn't end well ... after all, famous folks have had no issue suing the hell outta people for false advertising in the past.