I would say get the Lexus if you are mainly driving on Singapore
road. Its more fun and comfortable.
You will be able to go head on head with the
WRX/EVO/Lotus/BMW's...its fun to be able to keep up with such cars
at traffic light drag race. Sometimes you win...sometimes you
lose...depends on who got more guts...but you will never be left
far behind for sure.
If you are driving a Porsche...many of them will not dare to race
with you because of the preceived mentality that "Wah, porsche leh,
very powerful, better not malu myself by racing with my unworthy
WRX-STi"
Get the porsche if you are more the track-type of person.
Else Lexus is the best of the compromised option.