| Chassis | Event | Sale | Est. Low | Est. High |
| 1929 ISOTTA FRASCHINI TIPO 8A SS CASTAGNA ROADSTER | 00000001482 | 2013 BarrettJackson Scottsdale | $1,320,000 | | |
| 1930 Isotta Fraschini Tipo 8A S Boattail Cabriolet by Castagna | 1581 | 2018 RM Sothebys : Amelia Island | $1,270,000 | $1,200,000 | $1,400,000 |
| 1930 ISOTTA FRASCHINI TIPO CABRIOLET | | 2012 BarrettJackson at Scottsdale, Arizona | $1,100,000 | | |
| 1933 Isotta Fraschini Tipo 8A | | 2009 The Scottsdale Auction : Gooding & Company | $1,089,000 | $1,000,000 | $1,500,000 |
| 1930 Isotta Fraschini 8A SS Cabriolet | 1578 | 2015 Bonhams : Les Grandes Marques du Monde au Grand Palais | $1,040,486 | | |
| 1925 ISOTTA FRASCHINI TIPO 8A S ROADSTER | 720 | 2013 BarrettJackson Scottsdale | $935,000 | | |
| 1933 Isotta Fraschini Tipo 8A Dual Cowl Sports Tourer by Castagna | 1664 | 2017 RM Auctions : Amelia Island | $902,000 | $800,000 | $1,100,000 |
| 1930 Isotta Fraschini Tipo 8A S Roadster | | 2023 Worldwide Auctioneers : The Auburn Auction | $885,000 | | |
| 1928 Isotta-Fraschini Tipo 8AS Commodore Roadster Cabriolet by Castagna | 1467 | 2013 RM Auction London | $669,039 | | |
| 1929 ISOTTA FRASCHINI TIPO 8A LANDAULETTE | 1390 | 2015 Bonhams : The Frederiksen Auction | $564,410 | | |
| 1930 Isotta-Fraschini 8A Transformable Torpedo | 1585 | 2008 RM Auctions Automobiles of Arizona | $495,000 | $450,000 | $650,000 |
| 1929 Isotta Fraschini 8A Convertible Sedan by Floyd-Derham | 1571 | 2013 RM Auctions Amelia Island | $473,000 | $550,000 | $650,000 |
| 1930 Isotta Fraschini Tipo 8A | | 2008 Vintage Motor Cars of Meadow Brook | $467,500 | $400,000 | $600,000 |
| 1928 ISOTTA FRASCHINI TIPO 8A S LANDAULET | 1515 | 2023 Gooding & Company : Pebble Beach | $467,000 | $500,000 | $700,000 |
| 1927 Isotta-Fraschini Tipo 8A Boat-Tail Tourer | 839 | 2012 RMAutomobiles of Arizona | $407,000 | $400,000 | $500,000 |