Mecum offered 10 Boss 429 Mustangs in 2021, eight of which were reported sold for an average price of $272,571. In 2019, the average auction price of a Boss 429 was $217,343. Hagerty Price Guide values for the Boss 429 are also up from where they were a year ago. 

Mecum offered 10 Boss 429 Mustangs in 2021, eight of which were reported sold for an average price of $272,571. In 2019, the average auction price of a Boss 429 was $217,343. Hagerty Price Guide values for the Boss 429 are also up from where they were a year ago. 

Mecum offered 10 Boss 429 Mustangs in 2021, eight of which were reported sold for an average price of $272,571. In 2019, the average auction price of a Boss 429 was $217,343. Hagerty Price Guide values for the Boss 429 are also up from where they were a year ago. 

Mecum offered 10 Boss 429 Mustangs in 2021, eight of which were reported sold for an average price of $272,571. In 2019, the average auction price of a Boss 429 was $217,343. Hagerty Price Guide values for the Boss 429 are also up from where they were a year ago. 

Mecum offered 10 Boss 429 Mustangs in 2021, eight of which were reported sold for an average price of $272,571. In 2019, the average auction price of a Boss 429 was $217,343. Hagerty Price Guide values for the Boss 429 are also up from where they were a year ago. 

Mecum offered 10 Boss 429 Mustangs in 2021, eight of which were reported sold for an average price of $272,571. In 2019, the average auction price of a Boss 429 was $217,343. Hagerty Price Guide values for the Boss 429 are also up from where they were a year ago. 

Mecum offered 10 Boss 429 Mustangs in 2021, eight of which were reported sold for an average price of $272,571. In 2019, the average auction price of a Boss 429 was $217,343. Hagerty Price Guide values for the Boss 429 are also up from where they were a year ago. 

Mecum offered 10 Boss 429 Mustangs in 2021, eight of which were reported sold for an average price of $272,571. In 2019, the average auction price of a Boss 429 was $217,343. Hagerty Price Guide values for the Boss 429 are also up from where they were a year ago. 

Mecum offered 10 Boss 429 Mustangs in 2021, eight of which were reported sold for an average price of $272,571. In 2019, the average auction price of a Boss 429 was $217,343. Hagerty Price Guide values for the Boss 429 are also up from where they were a year ago. 

Mecum offered 10 Boss 429 Mustangs in 2021, eight of which were reported sold for an average price of $272,571. In 2019, the average auction price of a Boss 429 was $217,343. Hagerty Price Guide values for the Boss 429 are also up from where they were a year ago.