If any of you are interested, it'* possible to upgrade the suspension on the Bonneville to be a stiffer, sportier ride. The Aurora which shares the chassis with the Bonneville came equipped with the FE3 suspension standard which is GM'* "sport suspension." The Bonneville SLE/SSEi came equipped with the FE2, or softer, "Touring suspension." I believe that the SE has the FE1, or soft ride, suspension. Anyways, It would be probable that suspension from the Aurora could be swapped onto the 2000+ Bonneville to achieve a stiffer, better handling vehicle. The sway bars are the same size however, at 30mm for the front, and 20mm for the rear. The Cadillac STS however, DOES have even larger sway bars that should be adaptable to the Bonneville. The rears are 22mm on the STS, but I do not know what the fronts are. Anyone wanting to try this out?