TARC's new clean diesel buses have hit the streets with a new silver-swooshy paint job. Yours truly has bicycled in their exhaust stream and while I'm not seeking out that space, they do indeed beat the fumes of your typical older TARC bus. They're the cleanest diesels engines you're likely to draft in everyday life, that's for sure.

Though the new grey-based graphic design reminds us a bit of Louisville's other major passenger bus system ...