Spektrum A391 Standard Digital Servo
        
          $ 4.20
        
        
          $ 14.00
        
      
      
      
        
      
      
    The Audi 90 quattro Racing flourished at American races in 1989. With a 2.2-liter inline-5 turbo engine capable of over 700hp, the 4WD quattro system gave it superior traction. Wider than the road car, its body had a large rear wing, and carbon and aluminum were largely used for its lightweight panels.
 
      
        
    
    
   
      
      
        
          
            
          
          
             
      
        
    
    
   
      
      
        
          
            
          
          
             
      
        
    
    
   
      
      
        
          
            
          
          
             
      
        
    
    
   
      
      
        
          
            
          
          
             
      
        
    
    
   
      
      
        
          
            
          
          
             
      
      
        
          
            
          
          
             
      
      
        
          
            
          
          
             
      
        
    
    
   
      
      
        
          
            
          
          
             
      
      
        
          
            
          
          
             
      
        
    
    
   
      
      
        
          
            
          
          
             
      
        
    
    
   
      
      
        
          
            
          
          
             
      
        
    
    
   
      
      
        
          
            
          
          
             
      
        
    
    
  