I mentioned in an earlier post that a dealer, Joslin Corp.,
used to carry the Kasea and now carries three models (although not yet visible on his website) that appear to be three of the four offerings from topmotorx.com:
The Volt (aka the Kasea ZE-2000)
The Metro (aka the E-Max Sport)
The dealer gave me specs on these vehicles and they seem to match topmotorx.com EXACTLY.