Sinatra

Greetings, Novice Lexus fan here looking for some thoughts. I plan on purchasing either GS or LS model, and I read all about LS how good the engine/tranny is etc, but wanted to hear from GS owners what I should look for in terms of year, and why, also why you like this model. I'm looking for 98 to 00 GS models and 92 to 00 on LS models. Thanks,