You may be right in that it's just a matter of time. My car spent over 6 years and 100K miles in the hot Texas sun (garaged at night) and the dash still looked extremely clean. Three months after I parked it in the garage, it cracked at virtually every joint and the finish went to crap. Without even touching it.
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2011 370Z 6MT Sport Gun Metallic | ARC | CJM | Ecutek | FI | Fujimura | R2C | SPL | Stillen | TWM | Z1 | ZSpeed | |