New Lexus vehicles equipped with NAV feature casual-speech recognition. Systems like OnStar and SYNC require specific verbal commands, but Lexus eases things up. You can say, "Call Bob at home," or "Gimme a Japanese restaurant," instead of regimented verbal cues. More details at Lexus.com.
Cost: Technology package, approximately $6000 | Ease of Use: Easy | You'll Be Using It: Right Away