I encourage everyone to go look for themselves at...
1. Your purchase agreement
2. The factory service manual
Daewoo
3. The ECU layout in the manual
There is NO provision in the code. Period. Trust me, I have the computer that links to both the Daewoo OEM ECU and the Delphi models found in the newer Aveos and Suzukis. No such bit of code exists because there is not a law that governs this (there was an attempt in 1971 but it fell through). It was too expensive of a development for such a low budget company.
The drive-by-wire vehicles may be equipped with the feature, but the ECU on them isn't available to look through... the Daewoo factory tuner will NOT read them, it's the same computer as found in the higher class cars such as Impalla and Catera, with a different pigtail and differnent map scalar.
Part of your purchase agreement with the automotive company states that you are reponsible for the vehicle upkeep and safety standards... not them. If the problem was a defect in the chassis or engine than they could be held accountable. The company cannot be held responsible if after your first tire change you put Uhaul trailer tires on the car and drive over 50mph and kill yourself... just isn't gonna happen.
In terms of business ethics, especially for an engineering firm, this is called "minimum coverage" under professional responsibility. Furthermore, due to the fact that anyone can change their tires and GM uses many different brands as showroom deliveries, there is no mandated speed limiter on these cars (again, prior to the DBW). This is known as "limited liability" where-as if you push the car beyond any legal limit... it's your own fault.
A nifty example is this... the seatbelts and airbag system in yoru vehicle are not designed for any impact above 55mph. This is LOWER than the highest (and for that matter average) speed limit found in the United States. You would think that the car company would get sued for not protecting you at normal highway speed... but they don't!
And again... legally, and socially, the definition of LIBEL is a form of slander or lying.
libel - Definitions from Dictionary.com
LIABLE is the act of being responsible.
liable - Definitions from Dictionary.com
As a practicing PE (Professional Engineer) in the automotive industry, I'm well aware of the legal ramifications and specifications on these things. Perhaps XL7 should go back to school himself.
If you want to get real technical about it, the limit is 155mph as set by "The Gentlemen's Agreement" that won't let cars go over that limit unless they are placed in the "super/sport" class of insurance. This can be enforced by electronics, or by physics...
Lastly, the tires found on the 2003 Cadillac CTS, a cousin to the Suzukis/Daewoos were delivered as S rated tires... and the car will top out around 145mph.