It might just be a powertrain switch, but using older cars to publicly mule test a brand new car is standard automotive procedure. For example Ferrari's Enzo track mule looked nothing like an enzo, it was a 348 with some obvious modifications
This Is The Incredible Ferrari Enzo Prototype
The common practice is to mask a totally new car with what looks like a tweaked revision of an older car. As long as the drivetrain produces usable test results it is a successful mule test even though the production car won't be anything like it.
This Is The Incredible Ferrari Enzo Prototype
The common practice is to mask a totally new car with what looks like a tweaked revision of an older car. As long as the drivetrain produces usable test results it is a successful mule test even though the production car won't be anything like it.