– Lotus driver Romain Grosjean believes that the uncertainty over the team's future in Formula 1 has been holding back development of the E23 Hybrid.Lotus recently faced a winding-up petition over unpaid bills to creditors, while Pirelli initially held back its tyres for the Hungarian Grand Prix amid contractual issues.French manufacturer Renault is also assessing its future in the sport, and whether or not it wishes to buy back the team it sold at the end of the 2010 campaign."The development hasn't been as good as we wanted," conceded Grosjean."It's not due to the people or brains that we have in the factory as we have a lot of ideas in the pipeline."I think the...
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