A twin-supercharged 800bhp 1966 Shelby Cobra 427 Super Snake once described by Road & Track magazine as the “Cobra to end all Cobras” headed the results at Barrett-Jackson's marathon 8-day sale, fetching $5,500,000. Built for Carroll Shelby's personal use, the sole-surviving Super Snake was the highlight among the 1,054-car Scottsdale catalogue, which generated a sale total of $95 million plus an additional $5.8 million raised for charity.

Saleen S7 Twin Turbo – © Mecum

The US continued to provide the month's big-ticket sales, with Mecum's award-winning 1967 Chevrolet Corvette L88 hammered away for $2,695,000 at Glendale; while a 449-mile 2016 Ferrari F12tdf brought $880,000 and a 1,167-mile 2006 Saleen S7 Twin Turbo – one of just 14 produced – drew $605,000.

Ferrari 330 GTC – © Silverstone Auctions

An ex-Works 1950 HWM Alta Jaguar with period Grand Prix history topped the UK sales at Silverstone Auctions, selling for £517,500 (est. £500-575k). Ferrari success included a UK-supplied 2011 599 GTO with under 10,000 miles on the clock at £500,625 (est. £440-500k) and a left-hand drive 1968 330 GTC at £331,875 (est. £375-425k).

Porsche 911 Carrera 2 Cabriolet – © Bonhams

Strong bidding for Diego Maradona's 1992 Porsche 911 Carrera 2 Cabriolet saw the football legend's car smash its €150-200k estimate, bringing €483,000 at Bonhams' inaugural online only auction. First owned by Maradona during his single season at Sevilla, the 911 with 'Works Turbo Look' bodywork had covered 122,700km and received a recent service at Porsche Bonn and a repaint in 2016.

Ferrari 458 Speciale A – ©2021 Courtesy of RM Sotheby's

Notable sales at RM Sotheby's timed online auction included a two-owner 7,700km 2015 Ferrari 458 Speciale A at $500,500 (est. $475-550k); a restoration-project 1969 Ford Mustang Boss 429, missing its engine and transmission, took $181,500 against a guide of $60-80k; and a 1998 Bentley Continental T with 29,463 miles from new raised $115,500 (est. $85-100k).

Bentley 4½ Litre – © Duke's

Five of the seven Bentleys offered from The Newton House Collection were successfully sold at Duke's on 11 March. The pre-sale star, a matching-numbers 1929 4½ Litre with open touring coachwork by Vanden Plas, made £465,000 (est. £500-700k), with an ex-Earls Court Motor Show 1956 S1 Continental Fastback at £295,000 (est. £300-400k) and a 1935 3½ Litre rounding out the top three at £126,000 (est. £140-180k).

Full Q1 results here:

Glenmarch Q1 - Top 10 auction sales Price Auction House Location Date
Matra MS 670 €6,907,200/£5.87M Artcurial France February
Jaguar D-Type $6,000,000/£4.32M RM Sotheby's USA January
Shelby Cobra 427 $5,940,000/£4.28M Mecum USA January
Bugatti Type 57 S £4,047,000 Bonhams UK February
Shelby Cobra 427 Super Snake $5,500,000/£3.96M Barrett-Jackson USA March
Bugatti Type 57 SC $4,735,000/£3.41M RM Sotheby's USA January
Aston Martin DB4GT £2,750,000 Gooding & Co Online February
McLaren Speedtail $3,277,500/£2.36M RM Sotheby's USA January
Lamborghini Miura SV €2,423,750/£2.06M RM Sotheby's France February
Aston Martin DB4GT £1,975,000 Bonhams UK February