Interesting note on the XR4ti's. In Australia they came with a version of the venerable small-block ford 289. Holy cow can you say sleeper! Anyway a guy I know here in Minn. looked up all the parts in Ford's bins and it's a fairly easy swap. There are lot's of these Merkurs with popped turbo's etc that you can get cheap. Swap in even a "mild" 250-300HP V8 and go have fun. My motto- Why stay stock!