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		Brian, 
 
To add to my earlier reply. 
 
I added a full width roll bar to both of my SPF cars, #1855 & #2584.  The factory bars are not track rated but most tracks will let you run unless the organizing group is picky.  2584 came with twin roll bars, I don't like these at all and changed to the wide single during the first year. 
In 1855 I changed to the Torsen diff and 3.27 gears.  Both are my preference. 
Swapped belts to the cam lock variety rather than latch & link 
Used the top twice in 60k miles between the two cars.  It's easier to get wet and dry out and not significantly less effective. 
I liked the glove box. 
Used the tonneau a lot. 
Ran 275/40-17 and 315 or 335/35 -17s.  Started with 15s for 6 weeks before changing and never looked back. 
Added a 2nd driveshaft hoop.  The SPF hoop is marginal. 
Headlights need an immediate upgrade.  I like the Hella 7" H4 conversions. 
Taillights are in need of an upgrade, properly designed LEDs can help. 
 
The SPF can be very comfortable, I ran MI to CO to MT twice.  MI to CO.  MI to VIR twice and many other day trips. 
 
On Backdraft, a friend has one. 
Nice car, wider in the back and maybe longer.  Might be a 92 or 93" wheelbase. 
The BMW suspension is way different than the SPF suspension. 
Similar brakes to SPF. 
Seats are thinner than the SPFs 
Build quality seems to be good but I don't think it's as good as the SPF. 
 
My FFR isn't near finished so I can't comment on anything other than parts. 
 
Jim 
		
	
		
		
		
		
		
		
		
		
		
	
		
			
			
			
			
				 
			
			
			
			
			
			
				
			
			
			
		 
		
	
	
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