If it's any consolation I always assumed it was a 3.5 purely by the boot numbering scheme.
Without anything other than my own logic I always thought the boot numbers related to the model and enginge size, so 318 would have been a 3 series 1.8 litre. Just goes to show how wrong you can be lol. Looking at the website they only seem to do 2 and 3 litre engines for the 3 series.........ignoring the M3 obviously
	
		
			
		
		
	
				
			Without anything other than my own logic I always thought the boot numbers related to the model and enginge size, so 318 would have been a 3 series 1.8 litre. Just goes to show how wrong you can be lol. Looking at the website they only seem to do 2 and 3 litre engines for the 3 series.........ignoring the M3 obviously
			
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