Hopefully not. Although this is a sh*tty situation for you, it seems that Lincoln has been pretty responsive on the "re-aquisition" front. Good luck to you.
Btw, by my count, you're the 17th member here to report a catastrophic engine failure due to bad fuel injectors. All but two of the others happened after only a couple days or weeks, and at or before the 200 mile-ish mark. I think the two exceptions were around 1200 and 2400 miles (others here will correct me if that's wrong). You're the first to report a failure at 4000 miles, which is a bit of a bummer since I think most Hybrid owners are hoping they're in the clear after the 1000-mile mark or so. Again, good luck. Keep us posted.
Oh, I should mention . . . for the majority of us that have not had any mechanical issues, this is a great, great vehicle. Hopefully, once you get past this sh*t show, you'll discover how good it is!