looks like you can get a nice C6 for around 30k
http://www.autotrader.com/fyc/vdp.jsp?ct=u&car_id=246847187&dealer_id=41380192&car_year=2005&model=CORV&num_records=100&systime=&make2=&start_year=2005&keywordsfyc=&keywordsfyc=&keywordsrep=&keywordsrep=&engine=&certified=&fuel=&body_code=0&search_type=both&distance=200&marketZipError=false&search_lang=en&first_record=101&make=CHEV&keywords_display=&color=&page_location=findacar%3A%3Aispsearchform&min_price=&drive=&default_sort=priceDESC&position=top&max_mileage=&style_flag=1&sort_type=priceDESC&address=14607&advanced=y&end_year=2009&pager.offset=100&doors=&transmission=Manual&max_price=&cardist=226