Absolutely correct, $100 deposit. There are also three benefits to the Hummer, based on information GM has released so far:Only $100. I'll likely be reserving one as well. Can't hurt to have options.
800 Volt System
350 KW charging
This puts the Hummer at the top of the charging capability for many years to come, since the existing CCS standard has the limit of 350KW. It will take many years to advance things beyond that, except that Tesla my do something special for their vehicles. So far though, it appears the CT is still a 400V system and they are pushing 625 amps to get 250KW charging.
One question Rivian has not really answered is; will the 300KW charging be standard or optional? Will it be included in the very first deliveries? I expect the configurator to tell me this.