She's a red with tan veleor ultra clean intreior , No rust. 129000 miles. Runs out good, but slow. My 84. Mercedes turbodiesel will spank it! I'll take some pix. What are the differences optionwise between a GL and a DL? Also, is a sunroof rare in this model? Is there any maintinance issues I ought to look for?

 

Sounds like you got a powder puff if the odometer is working...which is rare. Sun roofs aren't rare; finding one that hasn't been caulked shut is! Here's a few links to get you up to speed on your Volvo basics...
http://www.swedishbricks.net/ModelFAQ/140240model.html
http://www.swedishbricks.net/faq/volvofaq.html
http://www.vlvworld.com/indexframe.html?production.html
http://www.vlvworld.com/indexframe.html?engspecs.html