That's the point though, isn't it. Modern cars have lost the plot slightly. The race to be ever faster/grippier/safer has led to cars that you can't enjoy in the way you can an older car. You could drive a Williams at 8/10, revel in the movement going into a corner, and how purely the car reacts to every input, at speeds that will barely bother anyone. 
In a Meg/FRS and similar, driving at 5/10's you're in licence losing territory. Weight is the enemy of performance at the end of the day, and you'll never make a hatch that entertains like a 205/Williams etc without shedding some of the mass. 
Have to admire Mazda for ensuring the MX5 doesn't have too much grip, just ruins the fun!
 "
Adding power makes you  faster on the straights. Subtracting weight makes you faster everywhere."