Wow!~ X5! I see you're pretty loaded... By the looks of it, you're the sort that wouldn't be worrying about fuel expenses at all!
Since this is your first car, in my opinion it is actually better to get a 2nd hand car. That way, it won't hurt as much if you id manage to break something. And then in the long run, if something does break down, you get to learn more about car maintenance and upkeep. I'd suggest something that's just around 1-2 years old though, that way its much cheaper than brand new, having gotten off the initial depreciation but still not overly used.
As for the Focus, if you're not into hatches there is a sedan TDCi variant like this one:
FORD FOCUS : 2011 Ford Focus Sedan TDCi Diesel Automatic Philippines - 12265696
The Focus's TDCi engine is very receptive of mods. With less than 100k spent on mods, you'd be smoking V6's, and consuming half as much fuel!
Or, you can consider going for a midsize sedan as well! Late 2000s Accord and Camry V6's go for less than 1M nowadays. Then there's the Sonata too. Very nice car indeed.