Max, Amy, and Ned are driving old cars and want new ones. Rather than buying three cars, they decide to go in together and buy one car to share. Max wants to r

Max, Amy, and Ned are driving old cars and want new ones. Rather than buying three cars, they decide to go in together and buy one car to share. Max wants to replace his offroading jeep, Amy wants to replace her fast sports car, and Ned drives an amphicar because he lives on an island. So Max Amy and Ned go to GM and say "Design us a floating, offroading, sports car please we are trying to save money." By the end of the day GM has to convince them to take three variants of the same car, but the cost, time and design tradeoffs needed to reach that point were never worth it. When you could have designed three (possibly four) vehicles separately that each excel in their focus area. Saying that 'well all three would need gauges and windshields anyway' isn't a compelling reason to combine them.