Misallocation

Original-Owner 1988 Porsche 928 S4 5-Speed

Sold at Bring a Trailer on Sept. 11, 2025.

$16,430Confirmed

The price as reported by the house. Read from the house's results Oct. 25, 2026.

The car

Year
1988
Make and model
Porsche 928
Generation
928
Version
928 S4
Gearbox
Manual
VIN
WP0JB0926JS861756
Title
Clean
Condition
Good (3)Likely

Condition is our reading of the listing's description on Hagerty's 1 to 4 scale, not an inspection.

Against comparable sales

Below the middle half of 80 comparable sales, 23% under its bottom.

Middle half of sales$20,243 to $35,563
Median$26,875
Sales behind it80Likely

From 80 sales of the Porsche 928 S4 in our data over the last 24 months. Hammer prices, before buyer's fees. Half sold between $20,243 and $35,563.

Closest sales

Closest comparable sales
CarAuctionDatePrice
1988 Porsche 928 S4 5-SpeedBring a Trailer, May 2, 2025Bring a TrailerMay 2, 2025$38,250
1987 Porsche 928 S4 5-SpeedBring a Trailer, Oct. 26, 2026Bring a TrailerOct. 26, 2026$26,750
1989 Porsche 928 S4 5-SpeedBring a Trailer, Aug. 29, 2026Bring a TrailerAug. 29, 2026$31,500
35-Years-Family-Owned 1988 Porsche 928 S4PCARMARKET, Aug. 28, 2026PCARMARKETAug. 28, 2026$9,000
1988 Porsche 928 S4Bring a Trailer, Aug. 4, 2026Bring a TrailerAug. 4, 2026$26,000
1989 Porsche 928 S4 5-SpeedBring a Trailer, July 19, 2026Bring a TrailerJuly 19, 2026$29,928
1988 Porsche 928 S4Cars & Bids, July 2, 2026Cars & BidsJuly 2, 2026$8,500
1988 Porsche 928 S4Cars & Bids, June 23, 2026Cars & BidsJune 23, 2026$12,000