Sergeant James Post TRANSPORTATION 2018  P&SN presents its 20th annual report on the latest technical advances in police vehicles, components and aftermarket equipment. Welcome to our annual transportation issue where we cover all that’s new for the coming year – vehicles, emergency lighting and other accessories, plus all the results from the Michigan State Police (MSP) annual emergency vehicle tests. So, grab a cup of java, sit back and enjoy. Oh, yeah, don’t forget something to write with so you…