How about this?
https://en.wikipedia.org/wiki/Airbus_A220
Bombardier made a "clean sheet" plane (composite materials, geared turbofan, fly-by-wire, ...) that competes with the 1967-era 737. This plane would be cheaper to operate over the long term than the 737, be much quieter around the airport, use less fuel, generate less pollution, etc. Boeing offered a 70% discount to airlines to stay with the obsolete 737.
Long term passengers will suffer on a less comfortable plane and pay for increased operating costs with higher ticket prices.
In the end the plane got bought by Airbus because Airbus has the marketing power to not get bullied by Boeing.