The Malaysian owner has already sacked the top two Proton officials who backed Bahar's plan to turn the company into a specialist sports carmaker.
Three years ago, Bahar was brought in from Ferrari, where he was vice-president of sales, marketing and communications from 2007 to 2009, having previously worked for the Sauber and Red Bull Formula One racing teams.
Bahar initiated a five-year turnaround plan for Lotus that involved increasing sales in emerging markets such as China and launching five new models, starting with a new Esprit at the end of 2013. Five new concept cars were presented at the Paris motor show in 2010.
Late last year Bahar told former Driven editor Alastair Sloane that Lotus has been neglected as a brand.
"Twenty years ago we were mentioned in the same breath as Ferrari and Lamborghini. But there has been no investment lately," he said.
"So, over the next 10 years, we will invest NZ$1.6 billion. Our new range will be world class, innovative, pioneering and green."
Bahar believed Lotus has created a new icon in the Esprit.
"In the past, when people thought of the Esprit, they thought of the movies - Pretty Woman, Basic Instinct - but this time around, the car is the star of the show," he said.
"There's a fine balance in acknowledging the greatness of the past while rapidly leaping forward to the future and ensuring that this car not only does the name Esprit justice but also the Lotus brand.
"I think we've managed to find the balance. The design is aggressive. You have to see it to appreciate how low and wide the proportions are, but it still retains a level of dignity, of class and, most of all, exclusivity."
"We will continue to follow performance through lightweight, but that doesn't mean that our cars must weigh less than 1000kg. It means they are the lightest in their class. That is what performance through light weight means to us."
Bahar has been replaced by 51-year-old Aslam Farikullah, one of three DRB-Hicom executives who ran Lotus during the two-week investigation of Bahar, who has been appointed chief operating officer.