We live in Hemet, part of what is called the "Inland Empire" of Riverside & San Bernardino Counties/So. Calif. (just west of the mountains that separate us from Palm Springs, the Salton Sea & the low desert). Daytime highs will reach triple digits sometimes in mid May thru late Sep/early Oct., & consistently near 100, give or take a few degrees, half of June thru most of Sep. Some high humidity comes & goes but is not consistent like east of the Rockies, thank goodness. We see 90+ occasionally in virtually any month.

Certainly heat (& humidity) are major contributors to the adhesive failure. Our car was parked outside 4 days a week and it took nearly 8 years to fail (2012), remarkably the top material was still in excellent condition. The main point being that there is no known difference in the adhesive (the root cause) used in virtually all Roadsters.

As to "variety", I've referred to documentation from '09, provided to NHTSA by Chrysler during that time. I requested this info from NHTSA & received a partial disclosure. At that time period, Florida had by FAR the most failures, followed by TX,AL,CA,MI,NC,GA,AZ,PA,NJ,SC,TN,VA,(top half of list) & some reports in UT, NV, WI,NY,IL,OH,OR,CT,MA,& a few more (much fewer in bottom half but actual numbers were not given in a graph chart). Part of the failure rate must be attributed to actual numbers of vehicle sales by State (interestingly MI had twice the volume of cars of #2 FL with a much lower rate of failure, which does make sense).


As others have said, a "class action lawsuit" would (have) required deep pocket$ and would typically benefit the lawyers pocket$ the most. But I previously suggested that a small claims case by anyone who was turned down for assistance, should (have) been winnable if properly presented, INCLUDING Chrysler's own documentation. (Especially their Letter, now on NHTSA's website, & their Service Bulletin). Of course, their Warranty was only good for the '05 model year and the 10 year time limit has presumably expired on all of those sales.


So it is all pretty much "water under the bridge" now. In hindsight, we all should have directed our complaints to the FTC (& our Congress People), rather than the NHTSA, might have worked...
(Don't mean to hijack this thread)