Regardless of how new the car is - it should NOT have an engine flat spot...take it back!
There seems too much... "it's a Morgan, we don't want to rock to rock the boat" on here - sometimes...this Plus Four was probably north of £40K.
Ring the dealer tell them to pick it up (as it dangerous to drive?) and get them to recheck their work...it is after all part of the PDI. They will also then have time to fix for the instruments.
The dealer does not sound a great dealer either, to be honest, supplying it like this?
Ford do not deliver Focus's with a flat spot...Mobility drivers would not tolerate it...!
