When I bought my Yaris in 2006, I posted a quick review. I wanted to follow after 2.25 years and 40k miles. I commute 36 miles one way to work in often heavy traffic. The Yaris is great for this. It stops quickly, and starts quickly. For maintenance, so far I have changed the oil and air filters and replaced the front tires. If I keep my speed around 60 (the speed limit, btw), I get over 40 mpg; real nice when gas was $4 per gallon. When we go to lunch, my colleagues like to pile in just to ride in it. I still love the car and highly recommend it.
iPod jack, 5 speed, handling on the highway, fold down rear seat. Not sure if its a feature really, but the small size makes parking and maneuvering in the city a pleasure.
Originally, I suggested a tachometer and other options. I see Toyota has done this and more.