I just picked up my black 59 plate ISF. Drove down the M1 back to London.
It was a toss up between a M135i and ISF. I drove both and was impressed. However, the BMW was a little too plain and then the options, auto dimming mirrors £275, keyless go I think another £250 and the list goes on. (the car can certainly shift though!)
I chose the ISF in the end because:
It's rare
Has all the options
The ride on the road is bearable
The engine sound
Reliability (I've had 2 LS400's no problems)
It is fast
Fuel, the eighth gear is really useful on the motorway
Lexus customer service
The German cars cost more (insurance,servicing and initial price) and they are not necessarily better (as a road car)
As I have only owned it for 3 hrs, I will reserve further judgements for later. Terrible weather at the moment, but hope to open it up over the remaining weekend. Already got my brother waiting for a test drive. I will look out for an ISF in London now, I can't say I've notice any.