I was watching the thread about the liquid driven engine cooling fan.  I'm not an engine guy or even a good automotive consumer, but I still have an opinion, and I have a question for you guys that know.
Would it be possible to build a car today that doesn't require all the computer gadgetry, where you could take care of it yourself in your garage with a decent set of hand tools?  If so, I want one.
 It would be very possible, but it wouldn't sell all that well.  The general consumer does not want a car that's easy to work on.  They want a car that's comfortable, reliable and is a good value.  Also as technology evolves so will the car.  Any car is easy to work on if you have the information, space, and understanding of how the vehicle works.  Now days as with anything a strong understanding of electrical circuits is very important as many of these cars are using multiplex and CAN communications. 
With that being said, cars are not made purposely difficult for repair, but in order for the consumer to get roomier cabins, better fuel econs, and more features on the inside it does seem like it. Lets face it, electronic controlled cars are more efficent than the old fashioned carburated cars.  
70 BOSS Mustang

1970 Boss 302 Mustang 
Engine Type: V8 
Displacement: 5000 cc 
Horsepower: 290 bhp @ 5800 rpm 
Torque: 290 lb-ft @ 4300 rpm 
Performance 0-60 mph: 6.9 sec 
0-100 mph: --.- sec 
Quarter Mile: 14.6 sec @ 98 mph 

2012 Boss 302 Mustang 
Engine Type: V8 
Displacement: 302.1 cu in/4951 cc 
Horsepower:444 hp @ 7500 rpm  
Torque: 380lb-ft @ 4500 rpm 
Performance 0-60 mph: 4.0  sec 
0-100 mph: 9.2 sec 
Quarter Mile: 12.3 sec @ 115.8 mph 
LATERAL ACCELERATION:  0.98 g (avg)
BRAKING, 60-0 MPH:  108 ft    You have to admit, technology is nice.  The Lateral accel and braking the 70 would never be able to keep up.