Why stress over where to leave the Viper or if someone is going to do something to it during the ceremony? It will work into your subconscious. It is only one day and night. It is really all about the ceremony for both of you and the entire day for her.
The fact she knows you are really into cars, but willing to make the day all about her, will win you big points on wedding night and from there on. If you can stay awake that is. My wedding, I could barely make it to midnight and I was wiped out. My wife to.
There is plenty of time to take pictures of the two of you and the Viper down the road.
Me, I went for the big, big horsepower at our wedding. Team of six horses and an 1800s western stage coach took us from the wedding. Very memorable!
Just food for thought and the way I did it. But that is just me. Been married for almost 7 years and have never even had a major arguement. I must have done something right, though that there has been no make up sex, because no arguements! Maybe I should have put the Viper in the wedding party after all.