He sounds quite clear to me. He is going to attempt to host the exact same show (with the same daft challenges etc) but with a different line up. I don't see it working.
It might have worked if he had changed the format and gone back to testing everyday cars and all that old school top gear jazz, but using the Clarkson formula without Clarkson, wont work.
That, and I find Chris Evans, dull and annoying.