Mk II MR2 - mid-engined, tunable and exciting handling (if you don't mind swapping ends occasionally when it rains)
<a class="postlink" href="http://www.pistonheads.com/classifieds/used-cars/toyota/mr2/mr2-t-bar-g-limited-1992/1804430?utm_expid=73689293-28.2bCINt0CRiKCAcYTGPlTPQ.0&utm_referrer=http%3A%2F%2Fwww.pistonheads.com%2Fclassifieds%3FCarTypeFF%3DANY%26Category%3Dused-cars%26Consumption%3DANY%26FuelType%3DANY%26M%3D580%26NoDoors%3DANY%26SortOptions%3DPriceLowToHigh%26Transmission%3DANY">http://www.pistonheads.com/classifieds/ ... sion%3DANY</a>
OR
<a class="postlink" href="http://www.pistonheads.com/classifieds/used-cars/toyota/mr2/toyota-mr2-gts-turbo-t-bar-1990/1847518?utm_expid=73689293-28.2bCINt0CRiKCAcYTGPlTPQ.0&utm_referrer=http%3A%2F%2Fwww.pistonheads.com%2Fclassifieds%3FCarTypeFF%3DANY%26Category%3Dused-cars%26Consumption%3DANY%26FuelType%3DANY%26M%3D580%26NoDoors%3DANY%26SortOptions%3DPriceLowToHigh%26Transmission%3DANY">http://www.pistonheads.com/classifieds/ ... sion%3DANY</a>
You can stretch to an E46 330d or even a E3530d if you spent a few hundred less on the van - they're fairly fast stock, and with a remap will give much more torque whilst remaining economical...
How about a near-300bhp Lexus Soarer with the same twin turbo engine and suspension as the Mk IV Supra:
<a class="postlink" href="http://www.pistonheads.com/classifieds/used-cars/lexus/soarer/toyota-lexus-soarer/1846447?utm_expid=73689293-28.2bCINt0CRiKCAcYTGPlTPQ.0&utm_referrer=http%3A%2F%2Fwww.pistonheads.com%2Fclassifieds%3FCarTypeFF%3DANY%26Category%3Dused-cars%26Consumption%3DANY%26FuelType%3DANY%26M%3D13%26M%3D105%26M%3D14%26M%3D15%26M%3D16%26M%3D17%26M%3D18%26M%3D79%26M%3D19%26M%3D20%26M%3D96%26M%3D70%26M%3D21%26M%3D23%26M%3D24%26M%3D25%26M%3D75%26M%3D26%26M%3D147%26M%3D27%26M%3D73%26M%3D59%26M%3D67%26M%3D81%26M%3D28%26M%3D30%26M%3D129%26M%3D31%26M%3D954%26M%3D10%26M%3D107%26M%3D78%26M%3D121%26M%3D34%26M%3D119%26M%3D35%26M%3D36%26M%3D132%26M%3D37%26M%3D38%26M%3D39%26M%3D63%26M%3D2245%26M%3D74%26M%3D41%26M%3D42%26M%3D43%26M%3D45%26M%3D46%26M%3D48%26M%3D49%26M%3D92%26M%3D50%26M%3D82%26M%3D51%26M%3D11%26M%3D77%26M%3D53%26M%3D54%26M%3D55%26M%3D62%26MaxPrice%3D3000%26MinPrice%3D500%26NoDoors%3DANY%26Page%3D2%26ReorderOnce%3DPRF%253ai%257cYRF%253av%257cPCF%253av%257cLCF%253av%257cFTF%253ah%257cCTF%253ai%257cESF%253ai%257cMRF%253ah%257cECF%253ai%257cEPF%253ai%257cEOF%253ai%257cCLF%253ai%257cCHF%253ai%257cOWF%253ai%257cPXF%253ai%26SortOptions%3DPriceLowToHigh%26TopSpeed%3D999%26Transmission%3DANY">http://www.pistonheads.com/classifieds/ ... sion%3DANY</a>