Another Land Rover here. 🙄
I used to have a Series 2 with a Perkins 4.203 as well.
Range Rover diffs, overdrive and 7.50R16 tyres meant it would do 55mph flat out.
If we include vintage trucks…
1943 AEC Matador. 33mph top speed.
1970 AEC Militant Medium Recovery Vehicle. 22 tons unladen. Towing a Samson CVRT on a trailer up Birdlip hill out of Gloucester, 36tons @ 204 bhp = 7mph.
I've also driven a friends Scammell Constructor. Originally fitted witha Meadows petrol engine, this one had a slower revving Gardner diesel. Top speed = 24mph.