Hi Carl
I can only answer your last question 4
Yes that is normal, you cant rev the engine, you may have a
slight increase in revs if you put your foot to the floor, you will also get a
message come up on the small screen in front of you saying that while the car
is in natural the hybrid system is not charging and you should put it in park,
Not sure if the 2007 model had the valve spring re- call,
you could check, other than that I would keep an eye on your oil level.
Thanks Chris, I rather thought the gas question was going to be normal as it drives just fine but having never owned hybrid before it's always worth asking.
Cheers Carl