It is funny that you have said that as I just bought a 2000 GU11 a few days ago, it has a suspiscious red switch under the dash between the fuel and bonnet handles.

I am also a little concerned about pushing it, I did have the joke with my father about it being an ejection seat switch.

I will ring the guy I bought it from and ask, see if it is the same thing when corski flicks his.