True that it's not 100% accurate but still a useful indicator.
It's like engine specifications as well, for example both the Lancer Evo & Impreza STI are rated at say 280HP but one is a bit faster than the other and yet still you can get a good indication of how much performance both of them capable of, which is surely way faster than an average 100-200hp sedan, but still much slower than a 500HP GTR.

Engine rated power can't be used as comparison of speed even when the 2 cars have the same HP, still depends on many other things such as torque, weight, gearbox ratio, etc. such as KTM X-Bow is lesser HP about 20% than Evo 10 but accelerate 0-100 faster.

Makers of tyre each have their own ways of determine the threadware rating. you can compare different patterns from  a maker but you can't compare between different maker. some maker even have a threadware of 700, do you believe that tyre can outlast double than other maker threadware that didn't even half of that?

You can't compare one company rating to another company rating. Each maker have their own way of doing the test so it will not be accurate. Only can compare with the maker few patterns.

As I said, it's not 100% accurate but IMHO still somewhat useful nonetheless, at least between the most popular top brands should have some level of parity. If not then why bother putting it anyway? If you look at those track ready tires, they are usually at low 100 rating, then the UHP tires in general are all around high 100 to low 300 tread wear only, while mid performance ones are higher again and the rating keeps getting bigger as the lower the performance class of the tires.

actually no, for UTQG, which is printed/certified by the american DOT, they are tested by a uniform standard.
refer:
http://www.safercar.gov/Vehicle+Shoppers/Tires/Tires+Rating
http://www.tirerack.com/tires/tiretech/tec...e.jsp?techid=48

actually no, for UTQG, which is printed/certified by the american DOT, they are tested by a uniform standard.
refer:
http://www.safercar.gov/Vehicle+Shoppers/Tires/Tires+Rating
http://www.tirerack.com/tires/tiretech/tec...e.jsp?techid=48

Unfortunately, the rating that is of the most interest to consumers is the one that appears to be the least consistent. While the Treadwear Grade was originally intended to be assigned purely scientifically, it has also become a marketing tool used by manufacturers to help position and promote their tires.

The problem with UTQG Treadwear Grades is that they are open to some interpretation on the part of the tire manufacturer because they are assigned after the tire has only experienced a little treadwear as it runs the 7,200 miles. This means that the tire manufacturers need to extrapolate their raw wear data when they are assigning Treadwear Grades, and that their grades can to some extent reflect how conservative or optimistic their marketing department is. Typically, comparing the Treadwear Grades of tire lines within a single brand is somewhat helpful, while attempting to compare the grades between different brands is not as helpful.

Unfortunately for all of the money spent to test, brand and label the tires sold in the United States, the Uniform Tire Quality Grade Standards have not fully met their original goal of clearly informing consumers about the capabilities of their tires. Maybe it's because tires are so complex and their uses can be so varied, that the grades don't always reflect their actual performance in real world use.

Dude, do you even read the link that you provided? Basically the link are saying the same thing that I said, which is different pattern from different maker can't be compared, only different pattern from same maker can be compared.

Excerpt from your second link:

Treadwear grades are an indication of a tire's relative wear rate. The higher the treadwear number is, the longer it should take for the tread to wear down.

A control tire is assigned a grade of 100. Other tires are compared to the control tire. For example, a tire grade of 200 should wear twice as long as the control tire.

Of current tires:

15% are rated below 200

25% are rated 201 - 300

32% are rated 301 - 400

20% are rated 401 - 500

6% are rated 501 - 600

2% are rated above 600

When looking at UTQG ratings it is important to realize that the Department of Transportation does not conduct the tests. The grades are assigned by the tire manufacturers based on their test results or those conducted by an independent testing company they have hired. The NHTSA has the right to inspect the tire manufacturer's data and can fine them if inconsistencies are found. While most new tire lines have their grades established when they are introduced, they are allowed a 6-month grace period to allow the tire manufacturer to test actual production tires. Once a grade is assigned it must be branded on the tire's upper sidewall and printed on its label.

UTQG Treadwear Grades are based on actual road use in which the test tire is run in a vehicle convoy along with standardized Course Monitoring Tires. The vehicle repeatedly runs a prescribed 400-mile test loop in West Texas for a total of 7,200 miles. The vehicle can have its alignment set, air pressure checked and tires rotated every 800 miles. The test tire's and the Monitoring Tire's wear are measured during and at the conclusion of the test. The tire manufacturers then assign a Treadwear Grade based on the observed wear rates. The Course Monitoring Tire is assigned a grade and the test tire receives a grade indicating its relative treadwear. A grade of 100 would indicate that the tire tread would last as long as the test tire, 200 would indicate the tread would last twice as long, 300 would indicate three times as long, etc.

if course i read em, from the US gov site:
and from tire rack:

i too can quote selectively!

sure it can be inconsistent however it still can be used as a decent guideline which is what me/ 6UE5T is trying to find out.
unless of course tire makers are totally fine about getting fines. (pun totally not intentional)

that is of course provided consumers are fully aware of what they are getting into, such as good performance + good nvh = damn shit treadwear (due to very soft tires) and anything above 300 or so is very unrealistic figures that should not be trusted.

like i said, it's a mere guideline and consumers should also be self-informed by doing their own asking in forums/threads such as this, read up reviews from websites such as tirerack.

that's usually the norm before you buy something especially when they are not cheap such as good tires, no?

i say, don't be mislead by threadware rating when making decision for purchasing tyre. read review, comparison, test result is ok. just don't believe the threadwear.

Then stick with 215/45/17 to get choices for high performance tire

Can opt for gy f1a2,  ps3, Advan DB, toyo t1s, Nitto neogen since ur budget allow
All above tire are asymmetric and Threadwear below 300
That mean less noise and good grip