Many in the TL forums think the TLX is just the new TL, but I understood its a new product that replaces both. Early TLX reviews say the TLX 4cyl is similar to the TSX as well.
If you'd care to vote, vote here: http://acurazine.com/forums/showthread.php?p=15114040
If you'd care to vote, vote here: http://acurazine.com/forums/showthread.php?p=15114040