I have 240SX and 350Z. When 240SX got problem and I feel not wroth to fix then I went to Nissan dealer in Corona, CA to get 2007 Altima Hybrid ($2000 cheaper than 2008 model) on 6th, March 2008. Next day I drove to work and when I want to go lunch, it won't start. I am very upset. When I call Corona Nissan they want me to pay myself and bring the car to them. That is unacceptable so I call Nissan directly and get a case #. And Nissan told me to bring my car to closer Nissan dealer to get check and fix. When my car arrive to Oceanside Mossy Nissan and the service people opens the hood and we saw the cover for 12V connection is on the side of the hood. (I think they jump the car and forgot put it back). They think I forgot to turn off the light or something so the 12 volt battery dies, the car won't start. After they check the car they found out the car has a 3rd party alarm system installed (which they use at Corona Nissan) and the wire cause the 12V battery die. Mossy Nissan told me the dealer should not do any electronic change to Hybrid car. I went back to Corona Nissan on Saturday to return the car (unwind -
http://www.edmunds.com/advice/....html) and they said by law I have to give them the chance to let them fix the problem. I told them they installed a 3rd party alarm system without let me know (they forgot to let me sign the paper) so that's mean I buy item A and you gave me item B. Finally they took the car back. I also get 2008 Altima Hybrid from them on Sunday (they can not find the car color & package that I want without 3rd party alarm system installed on Saturday, they call another Nissan dealer to deliver to them next day for me.) When I have 2007 model, my high voltage battery showing full charge all the time but my 2008 model always showing about 70% charged, when it goes down to about 50% the gas engine kicks in to charge the battery. I don't know if the hybrid system design is different between 2007 / 2008 models.From the beginning I got about 33 MPG with 80 MPH on the highway 60 MPH at city mix( I wrote down mileage from the meter and divide how many gallons that I fill to my tank, the meter from the car is about 2 or 3 MPG higher than I got). Now I drove it slowly, I got about 37 MPG with 65 MPH on the highway and 40 MPH at city. (The meter shows 39.9 MPG)I choose Nissan Altima Hybrid because it has 20 gallons tank and can go for 700 miles per tank. If I want the best MPG then Toyota Prius will be the choice. I love my 2008 Nissan Altima Hybrid so far. I have question about the oil change service. Some dealer told me every 3750 miles but some told me every 5000 miles because the Hybrid uses 0w20 motor oil. Anybody knows?