Game Idea Research

My game idea that I would like to develop and create is a 3D car racing game. The Story of my game is the player is trying to rush his pregnant wife to hospital to give birth but is being chased by the police while doing so. My idea is that the game will start with the main player and his wife getting into their car and trying to race to the hospital through the busy traffic and crossing pedestrians  and if any red lights, drive too fast or any road rules are broken the police start pursuing you. Your wife is adamant that she will not give birth in the car so your aim is to ignore and escape the police until you arrive at the hospital. If the police catch you you've lost. Meanwhile there is a meter with your wives happiness/comfort at the top of the screen that you must also try and keep high, this meter decreases if you drive too crazy crashing into things or going over bumps or driving too slow. If you get to the hospital without being cause then you have won the game.

The Mechanics I am hoping to use for this game are: Sound effects and music, Controls and score.
For sound effects and music I want to have fast paced exciting music player in the background of the game to create an the fast paced atmosphere for the game and also have sound effects like horns from other cars and sirens for police cars in pursuit. A good example of sound effect from other cars and police is from the game Grand Theft Auto.

My idea in relation to controls are:
> is turn left
< Is turn right
SPACE bar is drive
ENTER in to brake
BACKSPACE is to reverse.

The idea behind the scoring is the have a meter at the top of the screen with the colours green yellow and red and a photo of the wife's face on top of the meter that starts of in green every time the player drives too slow or crashes the wife's face moves further down the meter to yellow and eventually to red, if her face reaches the bottom of the red on the meter then the player has lost the game. The player can also increase this meter by driving fast and not crashing. I am taking inspiration from the game Cooking Craze which is an ios game. In Cooking Craze if you don't serve the customers quickly enough their meter goes down until eventually they leave the shop.

Cooking Craze customer score

In conclusion this is an Idea I would love feedback on whether it could work or not and be able to develop more.