On 12th October 2017, Hap Seng Star presented prizes worth more than RM330,000 to 12 winners of the Hap Seng Star Pre-Owned Car contest winners. The contest was held from 28th July till 6th August 2017 in conjunction with The Largest Mercedes-Benz Certified Pre-Owned Car Carnival in Malaysia organized by Hap Seng Star. The contest was held between July 28 and Aug 6 and was opened to personal and company registered participants who bought a Mercedes-Benz certified pre-owned car.
The grand prize – a pre-owned Mercedes-Benz C 180 Avantgarde – was won by Perfect Solutec Sdn Bhd, while the first prize winner - SS Builders Sdn Bhd – received a Mercedes-Benz B 200. Five winners took away International Travel vouchers worth RM5,000 and another five winners won the Spa, Dine and Stay in Wellness Resort for two persons worth RM1,600.