Need A Car in Vegas

[ike]

I've just moved to Vegas for the summer and need to get a car. I've never owned one before and know absolutely nothing. I have plenty of money, but I'm a miser and don't want to spend any more than I have to. My number one requirement is safety, with fuel efficiency a distant second. Something comfortable would be nice. I care almost zero about style, or performance beyond what matters for safety. What brands/models would you recommend? Are there any advantages to getting new rather than used? Any advice on what I should know to ask about and or negotiating etiquette/tactics before I show up at a dealership? Lastly, if theres anybody who lives or has lived in Vegas who can recommend a specific dealership, that would be appreciated too.