If you were going to race the Accord you should have floored it, not p*ssy footed it LOL. :D
These cars are very expensive to maintain if you take them to the dealership. If you're not a DIY type of guy, my recommendation is find a good independent mechanic that is experienced with servicing Lexus, or take it to your local Toyota dealership. Chances are the Toyota dealership will be cheaper than the Lexus dealership.