Join Date: Nov 2005
Location: St Neots, Cambs
Thanked 0 Times in 0 Posts
I have a 2013 140 bhp campervan with auto gearbox and it does not have a torque converter. The gearbox is very similar to many auto boxes on upmarket German cars.
It has effectively two gear boxes with two clutches. One box handles gears 1, 3, 5 and 7 and the other gears 2, 4,6 and reverse.
When accelerating away in gear one the other box selects gear two so the gear change can be almost instantaneous.
There are no significant differences between the manual and auto gearboxes in the way power is transferred to the front wheels.
If the box is set up to select the "best gear" then it should be as efficient as the manual.