Originally Posted by DIDITDONEIT
Just Purchased A New '06 Base Roadster And This Is The First Car That The Automatic Is More Economical Than The Manual 17-25 Manual Vs 21-28 Auto And No One At The Dealer Could Tell Me Why.
My guess would be a combination of the following three reasons:
1. Sophisticated gear selection computer electronics allows for higher efficiency than when a human shifts a manual.
2. The lockup torque converter reduces the slippage inefficiencies typically experienced by automatic transmissions.
3. The autostick equipped Crossfire weighs just 23 pounds more than the 6 speed.