How much on the road testing was done to assess and set the mapping? On the systems from a few years ago ECU/ map set up started with a basic set up usually on a rolling road followed by “live” tuning from real world on the road tests. OK the systems are more complex these days with much more than just the basic tune of fuelling, advance etc being tweaked. Lambda feedback, temperature sensors for air and coolant, crank sensors......they all contribute to the ecu deciding how the engine runs. My Plus8 has two oil pressure sensors. One for the dash gauge and another to tell the ECU to shut the engine off if oil pressure drops. With auto boxes the “map” to manage gear shifts will have a set of rules to tell it to change up or down so has that been matched to suit a light Morgan with different torque and speed requirements to the original heavier BMW cars? The requirements will be different. The same torque output would affect a light Morgan more than a heavier BMW. Try your car out by accelerating in different gears from the same speed to gauge the response. Do it on a clear, straight stretch of road, starting in higher then down one. Don’t use high revs for a safety margin! It is a big reason why I prefer manual gears and spending time to learn the differing response for rev/gear combinations.