Can I make a request?

I'm looking for a Siemens S200 LRV. Transit systems in Calgary and San Francisco use it, and soon it'll replace the existing Cleveland RTA Rapid fleet. It's also compatible with Buffalo's Metro Rail, a hybrid light rail/heavy rail system that uses both high and low level boarding.

https://en.wikipedia.org/wiki/Siemens_S200

The SOAC, or State of The Art Car, was a 1970s-era prototype for future heavy rail vehixles in the USA.

https://en.wikipedia.org/wiki/State-of-the-Art_Car

Icing on the cake would be the never-built heavy rail A and B cars that were originally planned for Buffalo's Metro Rail system in 1973. The BART fleet of the time influenced its design.

https://www.cyburbia.org/forums/threads/buffalo-new-york-the-metro-rail-that-never-was-part-1.9024/

(FWIW, I'm working on travel demand curves based on real world statistics, including pre-COVID data from transit systems, and ITE (Institute for Transportation Engineering, US/Canada) time of day stats for various land uses.)