Its about time to purchase a new car for the wife. She drives 130 miles/day. I've been pondering whether a new Chevy Spark @ $12,000 & 39mpg or a new Chevy Sonic LS @ $16,000. What does everybody think? The Spark gets better mpg & costs less but is smaller while the Sonic has more power and a little more room. Any insight about ease of working on a Spark vs. a Sonic? What about longevity? I get her 2007 Aveo5 w/212,000 miles when she gets a new car.