A new survey finds more Iowans are going on-line before they go on the road for a test drive. The survey by the Iowa Auto Dealers Association finds six out of every ten Iowans who buy a new car have done at least some research on the Internet before stepping on the lot. Association executive vice president Gary Thomas says a cyber-savvy buyer is a better-informed buyer and the ‘net is changing how car dealers operate. Thomas says about three-quarters of Iowa’s car dealers are now on-line with websites, most of which feature vehicle inventory lists, contact information and links back to the manufacturers.