l know basic stuff about cars though l drive & l wanna educate myself more.
Thank you !
Also what is the difference in gas stations between gas grades of 92, 98,..or whatever & which is the best ?

Tiptronic is a type of semi-automatic transmission developed by Porsche and used in its vehicles. Tiptronic allows the driver to override the automatic mode by moving the lever into a second (tiptronic) shift gate and permits, for example, downshifting to increase the braking effect of the engine or for more performance. basically it is a semi automatic transmission,where you have the option of full auto or you can shift manually without having to use a clutch peddle..

the other answer to tiptronic is correct the v6 or v8 is simply the number of cylinders an engine has. if it says turbo after it that means its turbocharged. this is something on the motor that basically forcefeeds the motor more air & fuel to make more power. the 2.7 or 3.2 r sizes of the motor its a metric way of giving what they call displacment. the bigger the numbers thebigger the engines size. bigger motor bigger power. the numbers u see on the gas pumps is called octane ratings the higher the number the higheer quality of gas. higher quality means it may burn hotter r faster which is better for high performance motors. they say higher octane gas is better for ur engine ,its suppose to burn cleaner leaving less stuff left over in ur engine after its burnt. hope this helps nothing wrong with a little self education.