because handling a rear engine car is dangerous if done incorrectly, without any weight pressing in front you would understeer, and if you go too fast into a bend the weight of the engine at the back causes a pendulum effect giving you oversteer.

as marvinben says, Porsche has spent decades tuning the 911's chassis around this problem, other car makers simply gave up.
because of that Porsche is one of the best chassis experts in the world.

Putting the engine in the middle is great for balance, bad for practicality as you can't put things like rear seats or luggage space, all because that's where the engine would go.
Also can you imagine servicing a mid-engined car, you would have to lift up the whole car just for an oil change, or just changing the bloody spark plugs would cause you to bust a testicle.

Ironically the most cost-effective way to build a compact car today is the rear-engined layout as it gives more room in the front for the cabin, and the steering rack won't have to be squeeze in with the engine like front-engined, front wheel drive cars (FF).

The reason why we don't see more rear-engined rear-wheel drive cars is because production processes, engine design, and platform design has already been engineered and built around the FF-layout.
So it would be costly to invest in designing new platforms for RR cars.
Yes, rear torsion beam suspension is designed for cost-efficiency, and it gives you more luggage space.
Yes, the fastest FF car around Nurburgring is the Renault Megane R26R with its rear torsion beam suspension.
Somehow the Europeans seem to have the magic touch in tuning rear torsion beam suspension, something which Japanese carmakers can't seem to get right.
Just test drive a Ford Fiesta and Honda Jazz and you can see the difference in what I mean.

last week i found rare never b4 seen pics of lady gaga, n i share it on a forum, now that pic is all over the internet and people dont even know i'm the one who discovered it

shouldve put watermarks like you did with these pics

rare never seen before and "found" this guy did not "find" this pictures he took them. you "found" the pictures, water marking them will make you look like an idiot