Tried once - and addicted
February 1, 2011
I have owned two Diamantes manufactured in Japan for Japan, 2000 and 2002.
They are very comfortable (like lexus), they hold the course very, very good even in turns. You do not feel the speed at all, you can easily go 120 mph without realizing it - you will feel it the same as 60 mph. With 16" rims it just ignores all the small bumps and dips, you will not notice them at all. I had several times to pull of the road, because upcoming traffic unexpectedly entered my side, and it hold the direction with even one side on pavement and another side on grass or sand. It's very reliable in steering.
It's transmission is tuned dual purpose - if you press accelerometer softly it will switch gears on low RPMs, but if you press it firmly, it will hold them to red zone, and kick-down aggressively. Well, it does it with a noticeable delay (0.5-1 sec), but it does. You get used to this timing and take this time to look back, and you can always remove your foot from accelerometer if you decide not to accelerate, it will switch it back. So with a little planning ahead of your actions, it is very maneurable.
It's pretty heavy car, and but it will stop very quickly. To accomplish that it has disk brakes on both axises, and they are tuned so to compensate for high deceleration and increased load on front axis. I had no other stock car to beat diamante at stopping and handling while stopping.
I put 4 for reliability because I had the same problemt with both Diamantes - hub/axle bearings on front wheels went off (left then right on the first car, then same thing on the second car). Other than that I had no problem at all. No problem with engine, transmission, AC, cooling system or anything like that. Oh, gas pump went off once, but it's really a random thing.
If you drive aggressively (and Diamante allows it) it will leak motor oil. It leaked it on both cars, and for all other Diamante owners I knew. If you keep RPMs below 3000 (as for most consumer cars) it will not. If you do not - just buy another 1/4 of the change amount, to add while driving, like check and add oil monthly when necessary, or after long and heavy race (as I sad it's easy to drive it at 120mph, and it will require hight RPMs).
As to comfort - it's very silent, it's even called "couch on wheels" by some.
I will stop here, however I could say more good words about this. Now I moved to US and am looking for another one.