In my opinion, the trueno is a great car, but the best of the trueno isn't the hp and the aceleration, the best it's the handling and the weight. When used with a guy in experience of underpowered cars, this car can be a good tailgate car, because the weight and more things. Like Bunta said in Initial D, the trueno is that car that can trains the driver because the car is underpowered, and to keep with a guy with more power, you need to use better the hp and the aceleration you have, you need to push the limits, not yours, but the limits of the car. When I say the limits of the car, I say the braking for the curves, the control in the curves, and the exit at the curves.
When you push the limits of the car at that (braking..), just buy another car with better power and handling and with better things, if when you drive the other car you was pushing the car's limit at your normal, in this new car you will push more your limit, because the limits of the car is higher, and you will be faster than before, and sometimes, it could be much more bigger

.
And this is real, I already had the prove, my father can be faster than me with a motorbike with less hp and less aceleration and with less handling but with lees weight (mine has 97 kg, and his motorbike has 70 kg or a little more), and I drive very well for a guy that isn't in races, but he still faster than me

.