I have a set on Michelin Harmony 185/70R14 on the 240 sedan. Mfg 24/06, 30/07, 24/08, 24/08. Installed May 2009. 45,000 miles since installation. 8/32" tread depth. Always garaged. No dry rot, no cracks, no obvious issues.
They run and handle perfectly. And they're super quiet.
My mechanic...