I'm curious if any of the last generation of Bonnevilles had a feature where you could just flick the ignition key and the engine would crank until it starts. I ask because our SSEi and SLE do not do this, but my Aurora does. You can just flick the key to 'start' quickly and let go, and the engine will crank itself until it starts. I have included a clip to show what I mean. It'* really a cool thing and I always forget when driving other cars that they don't do that and I have to hold the key on 'start' until the engine fires up.
BTW, the engine doesn't start the first time because of a safety feature, I have the gas pedal to the floor. (so that the engine doesn't start and you can see it continues to crank for a second after I let go of the ignition key.)