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When talking about vehicles, a TunerCar is a vehicle with modifications and replaced OEM (original engine manufacture) parts. Sometimes swapped with custom or performance oriented upgrades or even changing parts to make a more powerful and efficient vehicle; tuned. Most have a form of forced induction and go pop whilst shooting aggressive flames! Usually seen on the streets as opposed to official race tracks.

As of 1995, production vehicles must meet the OBDII protocol and thanks to this advancement in technology, most modern day vehicles can also be tuned (optimal programming values) via Software adjustment. This is also considered tuning of TunerCar's..

Major gains can be implemented via software modification.

After mechanical(hardware) upgrades and custom software tuning (a computer flash) to supplement the new vehicle characteristics; YOUR CAR WILL DESTROY THE ROAD AND EVERYTHING AROUND IT!!! {your fines will cost as much as your dyno flash bro}
We us the word "tune" -> "to adjust" or "to change" something from factory specification.

Word on the street:
People call fast Japanese cars "tuner cars"

People call fast American cars "muscle cars"

if you want street credit - get street credit
Man, did you see that TunerCar?
-No dude but i heard it go pop!

That tunercar backfired....
-man thats his tune, dawg... you see he is running it kinda rich, probably over lubricating his seals but hey, when the un-burnt gas hits his Hottt exhaust, it ignites and goes bang!

ohh, cool.. so it doesn't hurt it?
-not at all tinytuner, infact a backfire is harmless to engines and engine control... however; prefire (or preignition) is quite the opposite and can destroy an engine instantly.
via giphy
by UrbanTuner December 08, 2018
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Dec 1 Word of the Day
"Man fuck Donald trump, he wants to build a wall and don't pay taxes!!"
by January 30, 2017
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1) Any vehicle in the automotive community that has a reputation for having a performance-oriented modification-friendly platform. Typically, modification paths fall into one of two categories: either improving the engine's power output or improving the cars suspension/braking system. Examples of these cars in the US include the Toyota Supra, Mitsubishi Eclipse, Dodge Neon SRT4, the 1979-2004 Ford Mustangs, and many pre-1974 "muscle cars" from US manufacturers.

2) Any vehicle in the automotive community that has a reputation for throwing a fartcan, body kit, and crap paint schemes on it (see also: rice or ricer) because performance doesn't mean shit as long as you look mAd tYte, y0!!! Signs that an owner of a car uses this bastardized definition include posting "tuner" videos that contain plent of civics with bodykits without a single engine bay shot or cardomain pages that make your eyes bleed when loaded.
1) I'd really like a Toyota Supra, but thanks to that retarded Fast and Furious movie, I have to consider a cheaper tuner car.

2) i cAn't wAt3 2 g3tZ h0m3 frUm da sKoOlZ, y0! mUh BoyEE pUt h1z t00ner ciViK wIt dA mAd tYte rImZ on yOUtuBe, y0!
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Tuner Cars are often mistaken for rice burners. However, a tuner car is usually built by someone with a real knowledge of car performance and aerodynamics (as opposed to a ricer, who knows how to make his car handle like crap and attract police attention)

Tuner cars usually have the latest performance enhancing devices, such as a Turbocharger, Sports Exhaust System, Performance ECU, Upgraded Engine/Suspension/Audio Systems, and the babe to go with it all.

These cars are driven by tuners, probably the best people you will ever meet (if you can stand their constant garble about car performance :P)
Wow, that Tuner Car (tuned) Skyline sounds and looks and goes a lot better than the ricer silvia I just saw.

Tuners > Ricers

I like ham and cheese.
by Clontarf[X] January 25, 2004
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Tuner Cars are usually imports that have been modified after delivery from the factory to deliver increased performance or enhanced looks
See Fast and Furious Tokyo Drift those are tuner cars
by Brevard Tuner Car March 09, 2012
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At one time, a tuner did indeed mean someone who actually focused on performance for thier automobiles. now its a byword for riceboy extreme, used by those who are attempting to pull themselves out of the mire of trashy, goofy crud that the "import scene" has become. this is quite evident in the article above, where the schmuck mentions "audio" when discussing "performance upgrades". race cars dont have subwoofers, jackoff. have fun driving around whatever piece of shit ricemobile you happen to have.
me: you have 2 options: go back to watching fast and the furious with your pregnant teenage girlfriend, or i kill you on the spot. how dare you tarnish the reputation of automobile modders.
by Mac Sauce November 11, 2006
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noun, an economy car bought off craigslist by a financially misguided young man that is "tuned" to achieve slightly greater straight line acceleration and maximum potential lateral acceleration. notable features 1. are exhaust modifications that are loud yet particulary "untuned," as in creating various unpleasant low frequencies in steady, droning disharmony 2. disproportiately large rims bearing "low profile" tires 3. the hood of vehicle is often a different color than that of the other body panels 4. ride height of vehicle often altered. watch for scraping upon exit of hamburger drive-in.

Primary reason for good used honda civics being priced astronomically high, tuner cars have become an icon for the continued irresponsibility, entitlement, and egomaniacal behavior on the public road system of the US today. They have replaced muscle cars as a locus of blame in the grand scheme of percieved danger on the highway. While tuner cars, as inanimate object are obviously not at fault, they do symbolize effectively the continuation of the american inability to reconcile the conflict of ego versus landscape where the young man choses an ideal of control in response to deep seated emotional ignorance. see also motorcycle in regards to this part of def
Nice tuner car, dude. That's a real constructive use of both your time and precious metal alloys. Can't wait to see you out there on the road exceeding the social agreement of speed limitation! You will certainly beat a "stock" Honda Civic to the next red light in your tuner car. And that joker won't know what to do when he catches up and you both stare at each other, at the same red light, in the same reliable, sensible, safe, cute-as-a button compact japanese automobile.
by motorcycle god January 31, 2009
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