Whether any tenders have been awarded by the Buffalo City Metropolitan Municipality for fleet maintenance since 1 July 2016; if so, (a) when was each such tender awarded, (b) what were the (i) names and (ii) amounts tendered by each successful bidder, (c) what criteria were used to award the specified tenders, (d) how many bidders were considered for each of the specified tenders and (e) on what basis was each successful bidder awarded the specified tenders?