Hi in my house we have Both a D1 and D2.
Differences between the D1 and D2
1. The D1 has CDL and the D2 has ETC one is a central lock the other is traction control.
2. The D1 is smaller.
3. The D2 has more electrics than the D1
4. if your gonna be offroading many will tell the D1 is more preffered. but both kick ass!.
5. The D2 has a tad bit more horse power unless u get a 03-04 alittle more.
6. The D1 is a little easier to fix on the trail.
7. The D1 has alloy doors the D2 has steel doors.
8. Land Rover changed the D1 into a D2 in 1999.
Things to look for with a rover.
make sure it has records of anything that was or wasn't done.
U won't get honda gas mileage so don't expect it. 13/17
Discoveries are know for gasket problems however if the truck was well kept then that shouldn't be a worry.
Discoveries do have little electric problems inside then mostly with sensors LUCAS:banghead:
They both are incredibly strong trucks. Very Strong chassis,gearbox,Trans ,Drivetrain component. Axles are ok again if your gonna be wheeling HARDCORE u might want to upgrade quickly.
There are many companies to help u build ur rover or keep it running great. shop around.
Go offroad in it
Auto VS Manual I don't know much. but I have a auto. I think the Manual gets better fuel economy. but I think it will be a little hard off road. with constant gear changing.
the major difference between the 3.9 and the 4.0 is that one is a distributor and the other is GEMS. General Engine Management System I think.
Advice on the Disco
If u find one in great shape good.
just do all or have done all the basic prevenitive repairs.oil ,gear,trans changes and the Discovery will give many years of excellent service fail to that and the Disco will make u very mad. She can be a big baby bitch.
Brian. So might tell u the Discovery isn't a good vehicle but I say F%%K them
GOOD LUCK PAL.
one more thing the best years is 94-04 only years of the Discovery