| Message | 
With a switch, it's like a conditional statement: IF clutch switch= engaged..... car starts If you have 2 switches, you can set the logic to something like this, a simple truth table: 
| Neutral switch | 
Clutch switch | 
Car start? | 
 
| No | 
No | 
No | 
 
| Yes | 
No | 
No | 
 
| No | 
Yes | 
No | 
 
| Yes | 
Yes | 
Yes | 
 
 To achieve something like that, you can probably just wire both switches up in series so the signal only gets there if both switches are engaged. 
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