not sure how much a better handler the uprated ARB's makes to the 03/04 models when compared to the early models? I am sure you could fit after market ARB's to ealier models and they will handle just as well as the 03/04 models?
after coming from an IS300 with 18'' wheels and sport suspension, i am glad i went for the SE GS430 over the sport i still like the looks of the sport models but 95% of the time the ride is better when compared to my IS300. during the occasional sprited i can feel the GS is a bit all over the place during cornering but i suppose that could be improved with stiffer side wall tyres mayvbe 18'' wheels and fitting anti roll bar or lowering the ride height slightly but this might spoil the overall ride where 95% of my driving is done.