This is actually my second attempt at creating a map for the September 2020 MTC. My first one was a kacky-lite track that... just wasn't fun, and so hasn't been submitted.
This one started mostly as an attempt to utilise the DirtHill blocks
(https://item.mania.exchange/Set/View/10358), and I feel that the item set is probably not ideal for a short track due to slower acceleration on dirt and the set's prevalance for long, sweeping turns. However, changing the challenge a little from being fast to being technical I believe has resulted in a track that should be fun to hunt and interesting to drive while still meeting the competition requirements.
My personal advice for this track: DON'T DRIFT. You want to stay as straight as possible. Brakes are necessary, but only a tap here or there. I believe that a sub-18 second run is possible, but you would need to be absolutely perfect. While you can get a fast time if you hit the wall in a couple of spots, the cost to your acceleration will prevent you from getting a time better than 19 seconds.
Good Luck!