Vehicle bug.. and no mission restart. --LAS VENTURAS--

Okay, I love GTA SA, some missions are challenging, but there are some glitches, like, no mission restart. Yep, every time I fail a mission, no "Do you want to restart the mission? YES NO" so, please fix that, and one thing. Whenever I enter a vehicle, even a Hunter, it keeps going left or right without me pressing the left/right button, please fix it, and it happened since a few missions after I started to do stuff in LV. Please fix this. Thank you.

Entering glitch about Grand Theft Auto: San Andreas, v2.01