Chapter 5, End of Chapter, QUESTIONS AND PROBLEMS, Exercise 8 lowa passed a statute restricting the length of vehicles that could use its highways. The length chosen was 55 feet. Semitrailers are generally 55 feet long; double or twin tracks (one cab pulling two trailers) are 65 feet long. Other states in the Midwest have adopted the 65-foot standard. Consolidated Freightways brought suit, challenging the lowa statute as an unconstitutional burden on interstate commerce. The lowa statute meant Consolidated could not use its twins in lowa. The lowa legislature claims the 65-foot doubles are more dangerous than the 55-foot singles. However, the statute did provide a border exception: Towns and cities along lowa borders could make an exception to the length requirements to allow trucks to use their city and town roads. Can lowa's statute survive a constitutional challenge? Is the statute an impermissible burden on interstate commerce? Answer with detail on how you got that