autovector

Know the chassis
before you bid.

Autovector answers your enthusiast-car questions from what owners and bidders actually said — thousands of real Bring a Trailer and Cars & Bids comment threads, distilled per chassis, and every answer points you back to the source listing.

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20k+listings captured
70chassis generations
650+grounded briefs
100%from real comments

Ask it like you'd ask a knowledgeable friend

Real questions, chassis-specific answers — grounded in the threads, not generic AI guesses.

How rare is a manual F10 M5?
vector
Very — only 577 6-speed F10 M5s were built, all for North America, and just 118 with the Competition Package. It's the last manual M5 and commands a $7-10k+ premium over the automatic.
981 Cayman or step up to a 718?
vector
Enthusiasts call the 981 the peak Cayman — the last naturally-aspirated flat-six before the turbo-four 718. The 718's 4.0 GTS/GT4 bring the six back; base/S turbo-fours draw sound criticism. Manual + PSE is the sweet spot either way.
What should I watch for on a 996?
vector
IMS bearing and RMS are the headline M96 concerns, plus bore scoring on later cars. A documented IMS retrofit, clean DME over-rev report, and known clutch/water-pump history are what buyers reward. Want listings with the work already done?

Find the right listing, fast

Every Bring a Trailer and Cars & Bids listing for the cars we cover — live auctions and years of sold results — so you can find the exact car you're after, with prices and history, and open it on the source site in a click.

1996 Porsche 911 Carrera TargaBring a Trailer
1996 Porsche 911 Targa 6-Speedsold $160,000 · BaT
2016 Porsche Cayman GT4Bring a Trailer
2016 Porsche Cayman GT4sold $89,501 · BaT
2004 BMW M3 CoupeBring a Trailer
2004 BMW M3 Coupe 6-Speedsold $31,750 · BaT
2023 Audi RS6 AvantBring a Trailer
2023 Audi RS6 Avantsold $120,000 · BaT
2003 BMW M5 E39Bring a Trailer
2003 BMW M5 (E39)sold $37,000 · BaT
2007 Audi RS4 B7Bring a Trailer
2007 Audi RS4 (B7)sold $36,000 · BaT
2001 Porsche 911 CarreraBring a Trailer
2001 Porsche 911 Carrera 6-Speedsold $41,500 · BaT
2001 Audi S4 AvantBring a Trailer
2001 Audi S4 Avant 6-Speedsold $16,000 · BaT

A few real results from the corpus — every covered chassis, live auctions and years of sold history, each a click from the source listing.

Coverage

Deep, generation-by-generation coverage of the cars enthusiasts cross-shop.

Porsche 911F-series · G · 964 · 993 · 996 · 997 · 991 · 992
Porsche Cayman987 · 981 · 982 (718)
Porsche Boxster986 · 987 · 981 · 982 (718)
BMW M3E30 · E36 · E46 · E9x · F80 · G80
BMW M5E28 · E34 · E39 · E60 · F10 · F90 · G90
Audi SS2 · S3 · S4 · S5 · S6 · S7 · S8 · TTS
Audi RSRS2 · RS3 · RS4 · RS5 · RS6 · RS7 · TT RS
VW GTIMk1 (Rabbit) · Mk2 · Mk3 · Mk4 · Mk5 · Mk6 · Mk7 · Mk8
VW Golf RR32 Mk4 · R32 Mk5 · Mk6 · Mk7 · Mk8
Mercedes-Benz AMGC36/C43 W202 · C32/C55 W203 · C63 W204 · C43/C63 W205 · CLK55 C208 · CLK55/CLK63 C209 · CLK63 Black Series · CLK DTM · E55 W210 · E55/E63 W211 · E63 W212 · E63 W213 · R63 W251 · G55/G63 W463
Mercedes-Benz SL190SL W121 · Pagoda W113 · R107 · SLC C107 · R129 · R230 · R231 · SLK/SLC
Mercedes-Benz supercars300SL Gullwing/Roadster W198 · SLR McLaren C199 · SLS AMG C197 · AMG GT C190 · AMG GT 4-Door X290
Mercedes-Benz S-ClassW108/W109 · 450SEL 6.9 W116 · W126 · SEC C126 · W140 · CL C140 · 600 Grand Mercedes W100
Mercedes-Benz saloons & coupes190E W201 · 190E 2.3-16/2.5-16 Cosworth · W123 · W124 · 500E/E500 W124 · W111 Coupe · W110 Fintail · W112 Fintail · Ponton · 220 W187
Mercedes-Benz G-ClassGelandewagen W460 · W461 · W463 1990-2018 · W463 2019+
Mercedes-Benz pre-war500K · 540K · 770K · 300 Adenauer W186/W189
Mazda MX-5 MiataNA · NB · NC · ND

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