The VW, obviously. With most parts shared across 13 models and all models static for at least a year and usually longer. Plus VW has a good history of parts availability.
Tesla on the other hand is famous for both making minor changes to their vehicles pretty much continuously and a bad history of parts availability.
1M cars over 13 models mean you’ll have no parts at all. 10M identical cars means there’s massive third party supply. Parts are already cheaper than Toyota’s.
Tesla on the other hand is famous for both making minor changes to their vehicles pretty much continuously and a bad history of parts availability.