Man, I couldn't agree with you more, I'm in the DTM series now and there was not nearly enough testing (if any) of the cars. And as you say, if you chose the right car you're almost assured a win week after week. I certainly don't mind losing, but I'd sure like there to be a chance of winning. After a few weeks of the same car winning, there will definatly be people dropping out. I posted my concerns about parity, but I was told I was wrong ....we'll see in a week or two.
I mean, balancing is possible, and is actually a pretty easy thing - it just requires some extra testing.
Plus, I now see another reason. In Arcade Mode, there is no way to check the weight of a car - therefore, everyone could actually run at -10%. Which is, I guess, the reason why WRS stewards always put "-10% Weight" in arcade races. Also, there is no way to enforce a no-mod and stock-settings policy for GT Mode races - the replay can't tell if I'm using a racing flywheel, carbon driveshaft, or racing suspension. While trannys can be detected (an extra gear is noticable), and suspensions can, with a lot of picture-comparing, be found, the others simply improve performance in an un-noticable way.
Therefore, the only way I found it possible to regulate a series is the power-restriction - on Arcade, rather than weight-penalties, a power-penalty, and in GT-mode, a restriction of mods depending on position - first place can only run a stock exhaust, 2nd a sports, 3rd a semi-racing, 4th a full-mod, etc.
There are a lot of things to be considered when starting a series, as well as a lot of things that need to be changed during the series, and the maintaining of a fun series. Some of those aren't considered by the makers of series, which then causes even the best series to fail. Even the time of the year is vital - never run a series when many other popular ones are running, and also running a series at the december-january/may-june time, when university and school-students are busy with exams, may influence how many will enter, and how much effort will they be able to put into the series.
Thank you, I'm gonna strech my fingers...
Metar