No, but you can afford a sports car on a Biglaw salary.
Where do I even start. As someone who has actual experience with the matters being discussed, perhaps I can shed a little light onto this conversation.
Biglaw can come in many shapes and sizes ... well, shapes at least. Cravath and Quinn are not the same as, say, Jackson Lewis. Some BigLaw outfits are regional, some national, some international. Some are general practice, some are a little more specialized. It is a generic term used to roughly state that the place has a lot of attorneys, and pays well, and usually (but not always) is operating out of one or more of the larger legal markets.
Now, do you need a 165+ to work at BigLaw? No. You don't. I've worked at BigLaw, and I know that they don't ask for your LSAT. That doesn't quite end the discussion, however. The most prestigious BigLaw firms hire from the best schools. To get into the best schools, you need a high LSAT. In addition, some hires are made from the very top of other schools (those are usually the 10% plus law review to apply positions). As the LSAT is a decent predictor of law school success, there will be some correlation between doing well on the LSAT and getting a BigLaw job. But it's not close to a prerequisite, just as it's not a prerequisite to go to Harvard to work at Quinn (but it sure does help!).
Now, let's move to the sports car. Many boutique (that's law-speak for really, really small) law firms and mid-size firms will pay you more than enough to get that sports car. If you want to make the really, really big bucks, become a Plaintiff's Attorney. 33% (or whatever) of a bunch of settlements starts to add up. But the dirty secret of BigLaw is that almost none of those attorneys become partners within their own firm. You do the dirty work for a few years, pay off some bills, and then (hopefully) lateral to something more fulfilling. Many of those firms just poach attorneys that have built up their own book of business, or have gained other experience (say, as an AUSA) to become partners.
Long story short- it's very hard to take your comment credibly.