I just don't look forward to Top Gear now, with anything like the enthusiasm I did 5 or 6 years ago; so I thought I'd look at some statistics from this site to see if my waning enthusiasm is an aberration or not. From series 11 onwards the Finalgear.com ratings and number of votes cast for each episode have been published on the episode list accessed from the site's home page. So the stats I have are from series 11 onwards. They have just been plugged into excel in order to draw some graphs:
The average rating (or score) doesn't seem to show much change over the last 9 and a bit series, other than becoming a little more variable. What has changed is the number of votes cast for each episode, which has slumped to half the number from series 17 onwards (ie: early 2011 onwards). I don't know if this has anything to do with the television program, this site and its inhabitants, or both. Interestingly (although not unexpectedly) there is a good correlation between the number of votes cast and the average (rating) score from this site.
My rough conclusion. People are more likely to visit this site and vote if they liked (enjoyed) an episode. Less people are visiting this site and voting now than in the past. My waning enthusiasm is not an aberration.