Miley Cyrus can go from 0-60 in 5.3 seconds ... without a top on ... and all it cost her was a cool $127,000 ... TMZ has learned.
Cyrus dropped by a Mercedes Benz dealership in Encino, CA last week ... and drove off the lot in a brand new white 2012 SL550 convertible.
Sources close to Miley tell us ... the former Disney star paid for the entire thing up front ... because she can.
The best part ... Miley didn't even turn in her old car ... a bodyguard drove it back to her pad so she could joyride in her new toy.
The lesson -- it's good to be rich.
Expensive Fender Benders
After his health scare a couple of weeks ago, Nick Cannon is back on his feet and in the driver's seat.
Decked out in a sweatsuit, the 31-year-old was spotted getting out of his black convertible Ferrari in L.A. on Tuesday.
Earlier this month, Nick underwent surgery after being hospitalized with "mild kidney failure during his holiday vacation with wife Mariah Carey in Aspen, CO.
Screw laughter ... clearly a sleek, black, purring Ferrari is truly the best medicine of all.

Dwyane Wade got a SICK $230,000 sports car at his 30th birthday party in Miami this weekend -- but the most impressive part of the gift is how it was AIRLIFTED into the hotel pool without a scratch.
The car is a brand new 2012 McLaren MP4-12C -- given to him for FREE by the owner of a local luxury car dealership. Wade is the brand ambassador for that particular dealership.
The guy wanted the presentation of the car to be super-fancy -- with the McLaren waiting for Wade on a platform in the middle of the hotel pool. Problem is, you can't just drive that thing inside the hotel.
Instead, the car was loaded up onto a crane in the alley next to the pool area ... hoisted above the hotel wall ... and carefully lowered onto the waiting platform, positioned inside the pool.
Props to the crew -- because the whole thing went off without a hitch ... and D-Wade accepted his present in front of famous friends like Usher, Common, T.I., LeBron, and Chris Bosh.
D-Dub even got a shout from Vogue chief Anna Wintour ... who said, "I hope we'll see you back at NY Fashion Week in September, because you're my favorite person to sit next to at the shows."
The rich get richer.

Boy toy extraordinaire Casper Smart is really cruising into Jennifer Lopez's life ... and rode around on a yacht with the pop icon and her two kids in Miami on Friday.
For J.Lo, 2012 is all about out with the old and in with the new ... arm candy.

Bradley Cooper is now much more likely to seriously injure himself on the road -- because TMZ has learned ... the actor just got his motorcycle license in L.A.
Sources tell TMZ, Cooper hit up an L.A.-area DMV earlier this month -- where he successfully passed his test for a motorcycle license ... permitting him to hit the streets on whatever overly-priced vintage chopper he inevitably decides to buy.
But he better be careful -- according to some random motorcycle crash statistics we looked up, "Motorcyclists were 39 times more likely than passenger car occupants to die in a crash ... and eight times more likely to be injured."
Hey, if you're gonna lose a leg -- may as well look damn cool doing it.

Shoppers in London were bloody shocked to see a ridiculous cherry red stretch Ferrari Limousine parked outside Harrods department store the other day.
The ultra-luxury vehicle is 20 feet long and seats eight comfortably.
Let's see The Situation or Kim K try and do that in their Ferraris.

Cameron Diaz spent her weekend going full throttle ... or at least as much as one can behind the wheel of a go-kart.
Diaz was spotted in Carson, CA at a place called Go Kart World. We're told Cameron was there serving as a chaperone to a group of about seven boys and girls.
According to our spies, Cam picked up the tab for everyone ($25 a piece) and was quite the skilled racer. She seemed to take it quite seriously ... winning the first race and finishing second in the next.
Perhaps something good came out of those "Charlie's Angels" movies after all.

Justin Bieber was pulled over by the LAPD today -- after cops say he performed an illegal maneuver in his tricked out "Batmobile" ride ... TMZ has learned.
Cops tell TMZ ... Bieber made an "unsafe left turn" at an L.A. intersection.
But fear not Bieberettes ... Justin was let off with a warning after he promised to be more careful in the future.
This ain't the first time Bieber has been stopped by cops while driving the customized Cadillac -- he was pulled over back in October after cutting off a CHP officer. He got a warning that time, too.

Banging Jennifer Lopez has some HUGE perks ... (besides just banging Jennifer Lopez) ... TMZ has learned her new boy toy is now driving around town in the pop star's pimped out BENTLEY!!!
Sources close to Casper Smart tell us ... the world's most famous backup dancer isn't just using the car to chauffeur his meal ticket around when she's in L.A. ... he gets the car for personal use too.
Besides car privileges ... dude has already flown across the world on a private jet ... gone on tropical vacations ... and as we previously mentioned, he gets to bang J.Lo.
Not bad for a 24-year-old, Mr. Smart.
Looking a tad less confident than he did on TV, former "MacGyver" hunk Richard Dean Anderson, 61, got stuck in a bit of a jam when his car broke down in Malibu on Monday.
Where's a pocket knife and some chewing gum when you need them?
Not only was Jermaine Dupri's mega-expensive Lamborghini repossessed recently -- now, the people who fronted him the cash to pay for it are out for blood ... claiming the producer still owes them $80,000 for the car.
Premier Financial Services filed new legal docs in Georgia Superior Court, claiming Jermaine financed the white 2005 Lamborghini Murcielago in 2006 -- worth $330,000 -- and agreed to make 58 monthly payments of $4,323.
According to the docs, Jermaine dropped $70,000 up front for the car and successfully made the majority of payments -- but for some reason ... he dropped the ball in 2009, and failed to pay the remaining handful.
As a result, PFS repossessed the car and sold it off for $115,000 -- and now they're out for the difference ... insisting they hemorrhaged $79,095 in the deal-gone-wrong, and they're suing Jermaine for their losses.
Calls to Jermaine's rep were not returned.