ACR stands for American Club Racer, and the ZB II version is the most track-focused street Viper Dodge had yet built. On top of the 600 hp / 560 lb-ft 8.4-litre V10 it added a carbon-fibre front splitter, dive planes and a large adjustable rear wing generating up to about 1,000 lb of downforce at 150 mph, plus two-way adjustable KW coilover suspension and huge Brembo brakes quoted at under 100 feet from 60 mph. An optional 'Hard Core' package stripped the audio system, floor mats and spare-tyre provisions to save up to ~80 lb.
It is the car that made the ZB II famous: a street-legal 2010 ACR lapped the Nürburgring Nordschleife in 7:12.13 — a production-car record at the time, though set on Sept 14, 2011, after the generation had ended — beating cars costing many times as much. This taxonomy bucket also holds the ACR-based farewell editions: the 31-unit Voodoo, the 33-unit 1:33 Edition, and the 12 ACR-bodied 2010 Final Editions.
American Club Racer. On top of the standard 600 hp V10 it adds a carbon-fibre front splitter, dive planes and a large adjustable rear wing (up to ~1,000 lb of downforce at 150 mph), two-way adjustable KW coilover suspension, and big Brembo brakes. An optional 'Hard Core' package deletes the audio, floor mats and spare provisions to save up to ~80 lb.
Around a track, yes — that is the whole point. In a straight line it is similar to 60 mph but its downforce-generating aero lowers top speed below the coupe's 202 mph. Its signature achievement is a 7:12.13 Nürburgring lap, a production-car record when set (Sept 2011).
The 31-unit Voodoo Edition (black with an offset graphite/red stripe), the 33-unit 1:33 Edition (black/red, commemorating a Laguna Seca lap record), and the 12 ACR-bodied cars within the 50-unit 2010 Final Edition run. All are ACRs first and editions second.
No standalone ACR production total was published. What is confirmed are the sub-runs: Voodoo 31, 1:33 Edition 33, and 12 ACR Final Editions.
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