I think these new clean diesel engines are great alternatives to hybrids. The 2009 Accord is getting the same engine and supposedly it will get 52 MPG highway. I believe the Accord's HP will be at least 150, the TSX will obviously have a bit more. All the diesels will cost a bit more to buy, but I'm guessing the saving you will have from not filling up so much will erase that. I'd consider buying a diesel, but diesel stations are not that prevalent by me.