I didn't like my '96 RR tire options for my 18" wheels so this week I bought 16's for it.

As I hoped, it didn't adversely affect my handling (lane changes, etc.)

It did, however, smooth my ride beyond my hopes.

Old - 18"x 8" w/ michelin pilot 255/55/18 in nice shape
New - 16"x 7.5" w/michelin xpc 4x4 255/65/16 like new - slightly noisey, but nothing the stereo can't handle