When i bought my is300 last year the guy had just bought 4 new "budget" tyres made by Westlake (never heard of them) Thought I would wear them out before getting some "proper ones fitted. Thing is, now covered almost 20k on them and they still look like new, no uneven wear and even the tread still looks new, what the hell are they made of, plastic?? Anyone else got these tyres? (225's)