New List Member w/purchase question

[Duncan L. Forbes]

Hello all, my name is Duncan. I am long time Audi owner but first time user
of this list. I have a request for advice on the purchase of a car I
stumbled across yesterday.

It is a 1989 100 Wagon w/Automatic, cloth interior and roof rack.

The odometer is only reading 35k miles on it, which I find doubtful on a 12
year old vehicle, so I assume that the odometer is either non-functional or
has been replaced. The interior and exterior of the car are immaculate. The
only truly noticeable problems are a cracked windshield and a broken seal on
the left front headlight.

Previous Audi/VW experience
1984 5000 S wagon w/5spd manual (2.1L 5cyl. FI)
1987 5000 S sedan w/automatic (2.2L 5cyl. FI & 089 3 spd
transmission/transaxle)
86 VW Quantum GL w/automatic (2.2L 5cyl. FI & 089 3 spd
transmission/transaxle)

So my questions are,

1. How does the 2.3L SOHC engine compare against the 2.1 & 2.2 engines from
my previous experience?
2. Are there any known issues with the 89 100 that I should be looking for?
3. What transmission/transaxle is in this 100 and what is the track record
on them?
4. What would be fair market value for this vehicle?

I really want this car because I consider my 84 5000 wagon (which I owned
from 86-92) to be the best car I have ever owned and I kick myself for
selling it. I purchased the 87 sedan after selling my 84 wagon and was happy
with it but . . call me weird but I love wagons. So this is the first wagon
I have come across since selling my sedan. It looks good but I don't want to
be an idiot and buy something that I am going to regret so any input on this
would be appreciated.

Thanks
Duncan