Okay lets take my hardware out of play. Every car now days is detuned at the factory for reliability. You can get an aftermarket tune and programmer for 1-2k

Okay lets take my hardware out of play. Every car now days is detuned at the factory for reliability. You can get an aftermarket tune and programmer for 1-2k that might void the warranty on your engine and drivetrain. If you want to go the custom route and have your car tuned on a dyno that might be a few hundred dollars an hour. With gas cars the hardware is there. The software development cost is around building a gate/UI so only certain customers have access to it.