Fellow enthusiast, Am considering to purchase a 1996 528i and would like to hear your views comparing it to newer like 2001 523i. I am not sure if this is a correct apple to apple comparo but it seems this 2 models are most available in the market now. My concern, what is fuel consumption difference between the 523i and 528i? Recent research in the forum seems to suggest 530i is the best all rounder, power wise too. I also understand from the forum that 525i Double Vanos has better power compare to this 528i Single Vanos. Again, comparing Single and Double, which is easier to maintain? Or are they both more or less the same? And how does reliability differ, if any? Is the 528i one of the most difficult to maintain due to nikasil issue? I search the forum and seems less talk about 528i...most people enquire and experience of the 525i and 523i, 520i....even 530i....just very few 528i....any particular reason? Appreciate your comment. Cheers. Regards