Car seats-to-pushchairs firm Britax Childcare - part of Warwick-based Britax International - is believed to have attracted auction offers worth more than #200 million.

Four private equity bidders remain in the running to buy the business, which is being sold by Royal Bank of Scot-land?s private equity finance division.

ABN Amro Capital, Montagu, PPM and 3i have made first-round bids, with the offers worth between #200 million and #230 million. According to a report yesterday, no trade buyer has entered the auction process, which will now see the four interested parties begin due diligence work on the business.

Britax, which generated 85 per cent of last year?s sales of #115 million from children?s car seats, is seen as an attractive buy because of its strong brand and distribution channels.

As well as the Britax brand in the UK, Europe, the Americas and Pacific Rim, the company sells products under the Romer label. It is helped by high barriers to new entrants because of tough regulatory standards.