Arriving in my mailbox, yesterday, was the latest issue of Automobile Magazine featuring a side-by-side Test of the LFA vs. SLS. Other than remarks about the LFA's single-clutch transmission and very firm ride, the article's conclusion was the LFA was great to look at, and listen to. Two things we already know...
Sorry, their website automobilemag.com has no reference, yet, to the article but I'm sure one will surface shortly... In the meantime, check your local magazine purveyor.
BTW, glad to join...