GT-R is an amazing car. Used, you can find them in the mid 50's.

But, as a friend, may I suggest one thing: PLEASE get a full history on the car before you buy. Early generations snacked on transaxles like candy. The latest models (2010+) are best but $$$

2012 is the sickest one yet but it's over $100K when it's all said and done at the dealer.

And, as Mike said, maintenance isn't kind on the GT-R.

If you must have a manual, must have exotic speed, and must have a German marque... I'm shocked you didn't list a 911 Turbo. Best of all worlds. Careful with the snap oversteer, though...