Reggie- I only have two Superamerica parts on my 575M, the instrument panel and the HGTC exhaust.
Most of the problems with the Superamerica tops come from wear on the pneumatic struts that help the motor raise and lower the top. These struts lose their gas charge and do not provide the motor sufficient lift assistance. This in turn overstresses the motor and can also result in the top coming down harder than it should. These need to be replaced on a regular basis that appears to be about every 4-5 years.
To further add to what Terry has just mentioned, here is some experience from my end written as a response on another forum for folks who were quoting a lot of heresay about the Superamerica Roof.
Hope this also helps.
"Given all the previous posts and discussions, the comments here appear to be from a lot on non-SA owners with a lot of heresay. Let me try to address the points with a few more facts.
First, and from previous fellow SA owners discussions and from personal experience it is the two tiny supporting gas struts in the roof mechanism that go faulty and fail to support the roof properly going up or down. I held the boot open in those conditions with a golf umbrella OK and used my hald to help it open without dropping (from within the car). That worked fine until it was fixed.
Replacing the struts cost US$ 1140 including labour....at relatively high HK prices. I beleive some FChatters did the same in US for less.
Secondly, I have not seen a delaminating roof, but I would swear that because I only drive mine with the roof open it is in perfect condition. Because the car is prone to a bit of torsion (as most convertibles, even with addiitonal chassis support are), which I beleive twists the roof when driving on uneven surfaces, causing the delamination of the layers of glass and electrochromic layers. Hong Kong roads are very bumpy too.
So....if you find a good roof, keep it nice by driving with it down a lot.
Lastly, the whole roof replacement, when I last looked, is about US$25,000
Here it is currently in UK at http://www.eurospares.co.uk/searchRe...&TA=2&TB=37066
for GBP 15,653, which is about US$ 24,262
Ricambi or other US source may be cheaper.
I also think the SA has probably experienced the bulk of its depreciation now anyway.
In 10,000 Kms, in 5 year my SA has averaged US$ 2,000 per year in maintenance, including annual service, the roof fix above, Cam belt and associated stuff, New TPMS sensors and un-stickying the interior plastics. My MB280 saloon has cost me more (but over 40,000Km)
However, we dont have acorns in HK so no comment on that one!