The Veloster has a standard Forward Collision-Avoidance Assist, which uses forward mounted sensors to warn the driver of a possible collision ahead. If the driver doesn't react and the system determines a collision is imminent, it automatically applies the brakes at full-force in order to reduce the force of the crash or avoid it altogether. The TT doesn't offer collision warning or crash mitigation brakes.

The Veloster's lane departure warning system alerts a temporarily inattentive driver when the vehicle begins to leave its lane and gently nudges the vehicle back towards its lane. The TT doesn't offer a lane departure warning system.

To help make backing out of a parking space safer, the Veloster's standard cross-path warning system uses sensors in the rear bumper to alert the driver to vehicles approaching from the side, helping the driver avoid collisions. The TT doesn't offer a cross-path warning system.

The Veloster's driver alert monitor detects an inattentive driver then sounds a warning and suggests a break. According to the NHTSA, drivers who fall asleep cause about 100,000 crashes and 1500 deaths a year. The TT doesn't offer a driver alert monitor.

Both the Veloster and the TT have standard driver and passenger frontal airbags, front side-impact airbags, side-impact head airbags, front seatbelt pretensioners, four-wheel antilock brakes, traction control, electronic stability systems to prevent skidding, daytime running lights, blind spot warning systems and rearview cameras.

For its top level performance in IIHS driver and passenger-side small overlap frontal, moderate overlap frontal, side impact, roof strength and head restraint tests, with its optional vehicle-to-vehicle front crash prevention system, with its optional vehicle-to-pedestrian front crash prevention system, and its available headlight's “Acceptable” rating, the Insurance Institute for Highway Safety grants the Veloster the rating of “Top Pick” for 2021, a rating granted to only 121 vehicles tested by the IIHS. The TT has not been tested, yet.

The Veloster comes with a full 5-year/60,000-mile basic warranty, which covers the entire car and includes 24-hour roadside assistance. The TT's 4-year/50,000-mile basic warranty expires 1 year or 10,000 miles sooner.

Hyundai's powertrain warranty covers the Veloster 6 years and 50,000 miles longer than Audi covers the TT. Any repair needed on the engine, transmission, axles, joints or driveshafts is fully covered for 10 years or 100,000 miles. Coverage on the TT ends after only 4 years or 50,000 miles.

Hyundai pays for scheduled maintenance on the Veloster for 3 years and 36,000 miles. Hyundai will pay for oil changes, lubrication and any other required maintenance. Audi only pays for the first scheduled maintenance visit on the TT.

There are almost 3 times as many Hyundai dealers as there are Audi dealers, which makes it much easier should you ever need service under the Veloster's warranty.

To reliably power the ignition and other systems and to recharge the battery, the Veloster has a standard 150-amp alternator. The TT's 140-amp alternator isn't as powerful.

A reliable vehicle saves its owner time, money and trouble. Nobody wants to be stranded or have to be without a vehicle while it's being repaired. Consumer Reports rates the Veloster's reliability 24 points higher than the TT.

J.D. Power and Associates rated the Veloster first among compact sporty cars in their 2020 Initial Quality Study. The TT isn't in the top three in its category.

J.D. Power and Associates' 2020 Initial Quality Study of new car owners surveyed provide the statistics that show that Hyundai vehicles are better in initial quality than Audi vehicles. J.D. Power ranks Hyundai 10th in initial quality, above the industry average. With 72 more problems per 100 vehicles, Audi is ranked 32nd, below the industry average.

J.D. Power and Associates' 2021 survey of the owners of three-year-old vehicles provides the long-term dependability statistics that show that Hyundai vehicles are more reliable than Audi vehicles. J.D. Power ranks Hyundai 7th in reliability, above the industry average. With 26 more problems per 100 vehicles, Audi is ranked 20th.

From surveys of all its subscribers, Consumer Reports' January 2021 Auto Issue reports that Hyundai vehicles are more reliable than Audi vehicles. Consumer Reports ranks Hyundai 8 places higher in reliability than Audi.

The Veloster's 2.0 turbo 4-cylinder produces 47 more horsepower (275 vs. 228) and 2 lbs.-ft. more torque (260 vs. 258) than the TT 45 TFSI's standard 2.0 turbo 4-cylinder.

As tested in Car and Driver the Hyundai Veloster is faster than the TT 45 TFSI (automatics tested):

To lower fuel costs and make buying fuel easier, the Hyundai Veloster uses regular unleaded gasoline. The TT requires premium, which can cost 20 to 55 cents more per gallon.

An eight-speed automatic (SMG) is optional on the Hyundai Veloster, for better acceleration and lower engine speed on the highway. Only a seven-speed automatic is available for the TT.

For better stopping power the Veloster's standard brake rotors are larger than those on the TT:

The Veloster's standard front and rear disc brakes are vented to help dissipate heat for shorter stops with less fading. The rear discs standard on the TT 45 TSFI are solid, not vented.

The Veloster stops shorter than the TT:

The Veloster's tires provide better handling because they have a lower 35 series profile (height to width ratio) that provides a stiffer sidewall than the TT 45 TSFI's standard 40 series tires.

For better ride, handling and brake cooling the Veloster has standard 19-inch wheels. Smaller 18-inch wheels are standard on the TT 45 TSFI.

The Veloster has standard front and rear gas-charged shocks for better control over choppy roads. The TT's suspension doesn't offer rear gas-charged shocks.

For a smoother ride and more stable handling, the Veloster's wheelbase is 5.7 inches longer than on the TT (104.3 inches vs. 98.6 inches).

The Veloster N handles at .99 G's, while the TT 45 TSFI Coupe pulls only .98 G's of cornering force in a Car and Driver skidpad test.

The design of the Hyundai Veloster amounts to more than styling. The Veloster has an aerodynamic coefficient of drag of .32 Cd. That is lower than the TT (.32 to .355). A more efficient exterior helps the Veloster go faster and keeps the interior quieter. It also helps the Veloster get better fuel mileage.

As tested by Car and Driver, the interior of the Veloster N is quieter than the TT RS Coupe:

Because it has more passenger and cargo room, the EPA rates the Veloster a Compact car, while the TT Coupe is rated a Subcompact.

The Veloster has 15.9 cubic feet more passenger volume than the TT (89.9 vs. 74).

The Veloster has 1 inch more front headroom, 1.5 inches more front legroom, 2.4 inches more front shoulder room, 2.1 inches more rear headroom, 5.2 inches more rear legroom and 6.4 inches more rear shoulder room than the TT Coupe.

The Veloster has a much larger trunk with its rear seat up than the TT Coupe (19.9 vs. 12 cubic feet).

The Veloster Auto has a standard remote vehicle starting system, so the vehicle can be started from inside the driver's house. This allows the driver to comfortably warm up the engine before going out to the vehicle. The climate system will also automatically heat or cool the interior. The TT doesn't offer a remote starting system.

The Veloster's standard power windows have a locking feature to keep children in the rear seat from operating them, but the driver can still raise and lower all of them with the lock engaged. Audi does not offer a locking feature on the TT's standard power windows.

To improve rear visibility by keeping the rear window clear, the Veloster has a standard rear wiper. The TT doesn't offer a rear wiper.

While driving with high beams on, sensitive light sensors standard on the Veloster detect other vehicles which could be blinded and automatically switch to low beams. The TT doesn't offer automatic dimming high beams.

To shield the driver and front passenger's vision over a larger portion of the windshield and side windows, the Veloster has standard extendable sun visors. The TT doesn't offer extendable visors.

Insurance will cost less for the Veloster owner. The Complete Car Cost Guide estimates that insurance for the Veloster will cost $1525 to $4350 less than the TT over a five-year period.

IntelliChoice estimates that five-year ownership costs (depreciation, financing, insurance, fuel, fees, repairs and maintenance) for the Hyundai Veloster will be $14854 to $25928 less than for the Audi TT.

J.D. Power and Associates rated the Veloster second among compact sporty cars in owner reported satisfaction. This includes how well the vehicle performs and satisfies its owner's expectations. The TT isn't in the top three in its category.

The Veloster N was chosen as one of Automobile Magazine's “All Stars” in 2019. The TT has never been an “All Star.”