Hi I'm about to buy a '99 Boxster 2.5 - have sent it to 2 garages for condition reports but the feedback I'm gettingis drastically different. The 'authorised' dealer says I have to change a whole list of stuff,likeAirmass, evaporator,'996 362 125 55 and 51', 205/50 ZR 17NB, and just about every other filter &amp; O ring on the car. <IMG src=smileys/smiley25.gif border="0">I thought it was ridiculous and got a second opinion, and the other garage with does POrsches as well, came up with a short list of Airmass/oxygen sensor and brakepads.Is it normal for a '99 model with 89000km to it to have as many deficiencies as the 1st report?