FORMING A POLICY AGAINST TUNERS.

Byline: ANDREW LUU Insurance-or lack of it-may spell the end for sport compact enthusiasts Canadian Ron Shortt is a far cry from the fast and furious type: The 47-year-old Toronto man drives a 2002 Pontiac Sunfire back and forth to his job as a computer information technology specialist, and his driving record is snow-white clean-no accidents, no tickets. None of that mattered when Shortt decided to dress up his Sunfire with off-the-shelf, bolt-on interior parts, special wheels, a trick exhaust and lowered springs. In response, his insurer of 15 years, State Farm, canceled ...