I switched from an 08 IS-F to a BMW M340i about a year ago. The IS-F was obviously a better sports car (sharper and better handling), but for daily driving the M340i is brilliant, almost as quick, much more comfortable and the tech in BMWs is miles ahead of Lexus. The BMW B58 engine is so impressive, 0-60 in 4 secs or less and can return 40mpg on the motorway!