I think the general consensus is that the 2.0 diesel is the best engine in terms of reliability - Mine has been pretty flawless so far, i've not had any mechanical problems, but then again it's only on 70K miles, and I've only owned it for 3 of those 70 thousand. It's not too slow either, I recorded a 0-60 time of 10.3 seconds, I think the official is around 10.6 (So i'm not sure what was going on there) and mine's not been remapped. It's perfectly respectable, but aside from a remap and a performance air filter and some intake mods, I'm pretty sure that there's not too much potential for tuning. As for performance, obviously the 4.6 is the best, and you can whack a supercharger on it to increase power to something like 400HP, but aside from that, i've heard the 1.8 has a few modifications able to be done that can increase power to over 200HP, which is pretty decent.
That being said, i've never owned any other MG Rover cars aside from the one I have now, so I can't comment on the reliability of the other engines.
__________________
2004 Rover 75 Saloon - Connoisseur S.E - 2.0 Diesel CDTi - Platinum Gold - Auto.
1991 Mercedes 190E 1.8 (Nico) / 1991 Yamaha SR125 (David) This vehicle (Nigel) was born Wednesday, 15th September 2004 @ 08:14:39 and was the 103,810th 75 to run off the production line, out of 112,381 - This vehicle was the 3,096th 75 CDT Connoisseur SE (135) to be made out of 4,744 - This vehicle was the 303rd 75 in Platinum Gold (code: MCN) to be made out of 1,685 Platinum Gold 75s
|