I'll assume that this is for the US market. So here I go: the Mitsubishi Mirage.

The Mirage is, well to be frank, very unrefined; but if you want a cheap (cheapest, even) basic transportation that's reliable, fuel efficient, new, and has a warranty, it's hard to beat the Mirage.

In my opinion though, you do need quite a bit of tolerance for bad NVH if you're spoiled by luxury brand cars, since the Mirage's NVH is just plain bad. I rode shotgun with the G4 in Saigon recently, and even at just ~50 km/h you could tell that it's very unrefined in terms of road noise isolation.