Planned purchase of a Volvo V-40

Hello, we are planning to buy a V-40 in the summer. Viewed purchase price so around 2000,- . Desired engine 1.6 or 1.8 l. There are already models from year 2000. We have already looked here and there and I have seen that the models on the fenders are very rusty. Unfortunately not so in the Volvo matter, therefore we would be grateful for tips. What is to be observed? I noticed that there are relatively few models with sliding roof. Thanks