Editing Marcos Engineering (section)

=== Second generation race cars ===
[[File:Two Marcos Mantis Challenge race cars.jpg|thumb|right|Marcos Mantis Marcorelly race cars, built by [[Cor Euser|Cor Euser Racing]].]]
After the company's resurrection in 1981 the emphasis was on road cars, although price lists for the early V8 cars included a competition specification for "circuit racing, hill climbs and sprints". Competition options include FIA-approved roll-over bar, limited-slip differential, rose-jointed suspension and full harnesses.

In October 1993 Marcos unveiled its new competition car and announced a return to GT racing, including Le Mans. Based on the Mantara, the cars were designated LM400, LM500 and LM600. After some successes in the British GT championship in 1994, Marcos won it in 1995, 1996 and 2000. Two cars also competed at Le Mans in 1995. Both suffered electrical faults, one retiring and the other (driven by [[David Leslie (racing driver)|David Leslie]], [[François Migault]], and Jem Marsh's son Chris) finishing second to last, having completed 114 laps fewer than the winning [[McLaren F1]] GTR as its electrical problem stranded it on the Mulsanne Straight for two hours soon after the start.

The year 1998 saw the launch of the Dunlop-sponsored Mantis Challenge, a one-make race series for the coupé version of the Mantis road car with a dry-sump version of its 4.6-litre quad-cam [[Ford Modular engine|Ford Modular V8 engine]]. Complete with FIA roll-cage the cars weighed 950&nbsp;kg. Entries were few in 1998, and the cars were accepted for the Privilege GT series as GT2, and the French GT series as GT3, winning one of the races in France.  In 1999 the field was stronger, and the Dutch Mantis Challenge was also strong, and some races combined both. The 1999 UK series was won by Edward Horner, and the Dutch series by Robert Knook.<ref>{{cite web| title=Marcos in GT Racing 1999| url =http://www.marcoscars.net/marrac99.htm| access-date =1 June 2012}}</ref>

A total of 38 Mantis Challenge cars were built, but the series did not continue beyond 1999, after the GT Championship introduced the GT3 class. Many are still raced, including in the British Endurance Championship (Britcar), and at least one has been converted for road use.

In 2000, the Marcos racing business was sold to longtime GT sponsor Eurotech, a Dutch engineering firm. By that time, all Marcos racing cars and road car chassis were built in the Netherlands, with road car assembly completed in Westbury by a much-reduced staff.

An LM600 driven by [[Cor Euser]] competed in the [[Dutch Supercar Challenge]] and won the GT Championship in 2002 and 2004, and again in 2009, the 50th anniversary of the founding of Marcos. Euser also has the license to manufacture racing cars, and has done so with a GT3-spec Marcos Mantis, and did the same in a modified Marcos Mantis, named the Marcorelly. He has raced both of these cars in the Benelux-based [[Supercar Challenge (series)|Supercar Challenge]].