I don't know where you are getting your numbers, but I have never spent anything close to that, or known anyone to spend so much on tires. One of our friends bought OEM tires for a Trans Am RS6 and I think that broke a grand, but Tiburon costing more then a grand?!?!?! Maybe if you buy them at Bend me Over tires or something.I don't know how to tell you this, but owning luxury cars and cars with weird tires sizes gets expensive at tire replacement time.
It cost my grandparents 700 to 800 to replace tires on their Jag in early 1990, it cost my great uncle over 1200 for tires every time he replaced them on his Mercedes S500, and in 1998 when my grandma had to replace the tires on her BMW 325i Convertible, it cost 1000 for four P6 tires.
Hell, my Dad spent over a grand on tires for a Lincoln Continental and 800 for tires on a Mystique.
When you live in small town USA with a tire shop that sells only Firestones and Bridgestones and you want Michlens, Pirellis, BF Goodrich, Toyo and premium Goodyears, you pay out the butt for them.
Good tires cost a lot of money. You guys are used to driving Corollas with 14" and 15" wheels and standard all season tires. When you drive expensive cars whose suspensions are designed around certain tires or in the case of my neighbors Jag, there is only 1 tire size that is made by only 1 company that fits your car without rubbing that will fit on your 19" rims, you have to buy them. You don't buy a BMW with P6 or a Jag with P5 on it and then replace them with Firestones if you want the car to ride and handle as intended, you just have to pony up the dough to keep your machine running right.
And yes, tires for a Tiburon did cost over a grand. A friend of mine had 3 of hers slashed. She got all four replaced and for that model year, Michlen made the tires for all Tiburons and they weren't a standard size that you could just find in any other tire. She wanted them to replace her stock tires with ones exactly like it and it cost her insurance over a grand to requisition the specially made Michlens.
Then tirerack is wrong as to what original equipment is, or your friend got screwed over big time.
http://www.tirerack.com/tires/OETireResult...icleSearch=true
Just to compare.... A car that is a much bigger performer then a Tiburon, the GTO tires, cost $131 each.
http://www.tirerack.com/tires/OETireResult...icleSearch=true
Even with delivery and install charges, it is still way shy of a grand.