I'd like to see the ratio of hours with AC on vs off fleet-wide after the first year.

From a 2019 IEA report: "Estimates from the literature reveal that around 6% of the annual global energy consumed by cars is used for MAC(mobile air conditioning), varying by country between about 3% and 20% depending on climate, driving patterns and traffic congestion. It can peak at over 40% in warm climates and congested traffic. This equates to around 1.2 Mboe/d consumed by MAC units in cars alone, with other road vehicles adding another 0.6 Mboe/d. For electric vehicles, MAC can reduce driving range by up to 50% on hot and humid days."

https://www.iea.org/reports/cooling-on-the-move